World's Best Scientists 2026 revealed!
VIEW LIST
Michael S. Vogeley

Michael S. Vogeley

Drexel University
United States

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Physics 93 1996 1894 1027 958 200 99994

Michael S. Vogeley publications per year

The chart shows the history of publications by Michael S. Vogeley between 1989 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Michael S. Vogeley published across 38 years, from 1989 to 2026, averaging 5.7 papers a year. Output peaked at 20 publications in 2002. 6 of the 215 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1989 to 2026. Vertical axis: number of publications, 0 to 20. Peak 20 publications in 2002. 1989: 2 publications 1990: 1 publication 1991: 2 publications 1992: 1 publication 1993: 3 publications 1994: 6 publications 1995: 1 publication 1996: 1 publication 1997: 1 publication 1998: 2 publications 1999: 6 publications 2000: 8 publications 2001: 17 publications 2002: 20 publications 2003: 14 publications 2004: 13 publications 2005: 12 publications 2006: 8 publications 2007: 11 publications 2008: 11 publications 2009: 10 publications 2010: 11 publications 2011: 5 publications 2012: 4 publications 2013: 2 publications 2014: 5 publications 2015: 7 publications 2016: 4 publications 2017: 7 publications 2018: 6 publications 2019: 3 publications 2020: 2 publications 2021: 1 publication 2022: 2 publications 2023: 0 publications 2024: 0 publications 2025: 5 publications 2026: 1 publication
1989 2026

215 publications in total across all disciplines

View publications per year as a table
Michael S. Vogeley: publications per year, 1989 to 2026
Year Publications
1989 2
1990 1
1991 2
1992 1
1993 3
1994 6
1995 1
1996 1
1997 1
1998 2
1999 6
2000 8
2001 17
2002 20
2003 14
2004 13
2005 12
2006 8
2007 11
2008 11
2009 10
2010 11
2011 5
2012 4
2013 2
2014 5
2015 7
2016 4
2017 7
2018 6
2019 3
2020 2
2021 1
2022 2
2023 0
2024 0
2025 5
2026 1
Total 215
Download as CSV

Michael S. Vogeley publication distribution in Physics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Physics in 2026. The highlighted bar marks where Michael S. Vogeley sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 70 bars. Horizontal axis: publications, 103–122 to 1,469+. Vertical axis: number of scientists, 0 to 162. Most scientists, 162, have 323–342 publications. The last bar groups every scientist with 1,469 publications or more. The highlighted bar, 183–202 publications, is where this scientist sits. 103–122 publications: 7 scientists 123–142 publications: 10 scientists 143–162 publications: 31 scientists 163–182 publications: 35 scientists 183–202 publications: 53 scientists 203–222 publications: 81 scientists 223–242 publications: 85 scientists 243–262 publications: 112 scientists 263–282 publications: 114 scientists 283–302 publications: 126 scientists 303–322 publications: 136 scientists 323–342 publications: 162 scientists 343–362 publications: 155 scientists 363–382 publications: 156 scientists 383–402 publications: 134 scientists 403–422 publications: 145 scientists 423–442 publications: 147 scientists 443–462 publications: 131 scientists 463–482 publications: 131 scientists 483–502 publications: 116 scientists 503–522 publications: 106 scientists 523–542 publications: 103 scientists 543–562 publications: 87 scientists 563–582 publications: 84 scientists 583–602 publications: 94 scientists 603–622 publications: 70 scientists 623–642 publications: 76 scientists 643–662 publications: 60 scientists 663–682 publications: 54 scientists 683–702 publications: 60 scientists 703–722 publications: 48 scientists 723–742 publications: 64 scientists 743–762 publications: 48 scientists 763–782 publications: 37 scientists 783–802 publications: 43 scientists 803–822 publications: 34 scientists 823–842 publications: 36 scientists 843–862 publications: 32 scientists 863–882 publications: 32 scientists 883–902 publications: 31 scientists 903–922 publications: 25 scientists 923–942 publications: 15 scientists 943–962 publications: 24 scientists 963–982 publications: 13 scientists 983–1,002 publications: 21 scientists 1,003–1,022 publications: 21 scientists 1,023–1,042 publications: 16 scientists 1,043–1,062 publications: 9 scientists 1,063–1,082 publications: 19 scientists 1,083–1,102 publications: 11 scientists 1,103–1,122 publications: 17 scientists 1,123–1,142 publications: 11 scientists 1,143–1,162 publications: 7 scientists 1,163–1,182 publications: 4 scientists 1,183–1,202 publications: 10 scientists 1,203–1,222 publications: 8 scientists 1,223–1,242 publications: 16 scientists 1,243–1,262 publications: 4 scientists 1,263–1,282 publications: 10 scientists 1,283–1,302 publications: 5 scientists 1,303–1,322 publications: 7 scientists 1,323–1,342 publications: 4 scientists 1,343–1,362 publications: 8 scientists 1,363–1,382 publications: 6 scientists 1,383–1,402 publications: 7 scientists 1,403–1,422 publications: 3 scientists 1,423–1,442 publications: 4 scientists 1,443–1,462 publications: 4 scientists 1,463–1,468 publications: 3 scientists 1,469+ publications: 100 scientists
103–122 publications 1,469+

This scientist: 200 publications — 4th percentile

4% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,469 publications or more.

View publications distribution as a table
Number of Physics scientists by publication count, Research.com 2026 ranking edition. Based on 3,678 ranked scientists.
Publications Scientists This scientist
103–122 7
123–142 10
143–162 31
163–182 35
183–202 53 200
203–222 81
223–242 85
243–262 112
263–282 114
283–302 126
303–322 136
323–342 162
343–362 155
363–382 156
383–402 134
403–422 145
423–442 147
443–462 131
463–482 131
483–502 116
503–522 106
523–542 103
543–562 87
563–582 84
583–602 94
603–622 70
623–642 76
643–662 60
663–682 54
683–702 60
703–722 48
723–742 64
743–762 48
763–782 37
783–802 43
803–822 34
823–842 36
843–862 32
863–882 32
883–902 31
903–922 25
923–942 15
943–962 24
963–982 13
983–1,002 21
1,003–1,022 21
1,023–1,042 16
1,043–1,062 9
1,063–1,082 19
1,083–1,102 11
1,103–1,122 17
1,123–1,142 11
1,143–1,162 7
1,163–1,182 4
1,183–1,202 10
1,203–1,222 8
1,223–1,242 16
1,243–1,262 4
1,263–1,282 10
1,283–1,302 5
1,303–1,322 7
1,323–1,342 4
1,343–1,362 8
1,363–1,382 6
1,383–1,402 7
1,403–1,422 3
1,423–1,442 4
1,443–1,462 4
1,463–1,468 3
1,469+ 100
Download as CSV

Michael S. Vogeley D-index placement in Physics in 2026

The chart shows the D-index (discipline H-index) distribution of Physics scientists ranked by Research.com in 2026. The highlighted bar marks where Michael S. Vogeley sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 59 bars. Horizontal axis: D-Index, 70–71 to 185+. Vertical axis: number of scientists, 0 to 167. Most scientists, 167, have 80–81 D-Index. The last bar groups every scientist with 185 D-Index or more. The highlighted bar, 92–93 D-Index, is where this scientist sits. 70–71 D-Index: 76 scientists 72–73 D-Index: 110 scientists 74–75 D-Index: 143 scientists 76–77 D-Index: 153 scientists 78–79 D-Index: 144 scientists 80–81 D-Index: 167 scientists 82–83 D-Index: 167 scientists 84–85 D-Index: 166 scientists 86–87 D-Index: 132 scientists 88–89 D-Index: 155 scientists 90–91 D-Index: 134 scientists 92–93 D-Index: 137 scientists 94–95 D-Index: 102 scientists 96–97 D-Index: 112 scientists 98–99 D-Index: 110 scientists 100–101 D-Index: 116 scientists 102–103 D-Index: 97 scientists 104–105 D-Index: 103 scientists 106–107 D-Index: 87 scientists 108–109 D-Index: 90 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 78 scientists 114–115 D-Index: 75 scientists 116–117 D-Index: 67 scientists 118–119 D-Index: 69 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 59 scientists 124–125 D-Index: 53 scientists 126–127 D-Index: 42 scientists 128–129 D-Index: 41 scientists 130–131 D-Index: 33 scientists 132–133 D-Index: 32 scientists 134–135 D-Index: 45 scientists 136–137 D-Index: 19 scientists 138–139 D-Index: 24 scientists 140–141 D-Index: 28 scientists 142–143 D-Index: 31 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 20 scientists 148–149 D-Index: 12 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 24 scientists 154–155 D-Index: 23 scientists 156–157 D-Index: 15 scientists 158–159 D-Index: 15 scientists 160–161 D-Index: 11 scientists 162–163 D-Index: 17 scientists 164–165 D-Index: 12 scientists 166–167 D-Index: 11 scientists 168–169 D-Index: 9 scientists 170–171 D-Index: 9 scientists 172–173 D-Index: 11 scientists 174–175 D-Index: 4 scientists 176–177 D-Index: 8 scientists 178–179 D-Index: 5 scientists 180–181 D-Index: 3 scientists 182–183 D-Index: 4 scientists 184 D-Index: 4 scientists 185+ D-Index: 99 scientists
70–71 D-Index 185+

This scientist: 93 D-Index — 46th percentile

46% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 185 D-Index or more.

View D-Index distribution as a table
Number of Physics scientists by D-index, Research.com 2026 ranking edition. Based on 3,678 ranked scientists.
D-Index Scientists This scientist
70–71 76
72–73 110
74–75 143
76–77 153
78–79 144
80–81 167
82–83 167
84–85 166
86–87 132
88–89 155
90–91 134
92–93 137 93
94–95 102
96–97 112
98–99 110
100–101 116
102–103 97
104–105 103
106–107 87
108–109 90
110–111 67
112–113 78
114–115 75
116–117 67
118–119 69
120–121 60
122–123 59
124–125 53
126–127 42
128–129 41
130–131 33
132–133 32
134–135 45
136–137 19
138–139 24
140–141 28
142–143 31
144–145 22
146–147 20
148–149 12
150–151 16
152–153 24
154–155 23
156–157 15
158–159 15
160–161 11
162–163 17
164–165 12
166–167 11
168–169 9
170–171 9
172–173 11
174–175 4
176–177 8
178–179 5
180–181 3
182–183 4
184 4
185+ 99
Download as CSV

Overview

Michael S. Vogeley is affiliated with Drexel University in the United States and has a research focus in Physics and Astronomy, particularly within the subfields of Astronomy and Astrophysics, Instrumentation, Global and Planetary Change, and Computational Mechanics.

Their recent research publications include:

  • Examining AGN UV/Optical Variability beyond the Simple Damped Random Walk (2022, The Astrophysical Journal)
  • Complex variability of Kepler AGN revealed by recurrence analysis (2020, Monthly Notices of the Royal Astronomical Society)
  • Properties of a Previously Unidentified Instrumental Signature in Kepler/K2 That was Confused for AGN Variability (2021, The Astronomical Journal)
  • Investigating non-linear and stochastic hard X-ray variability of active galactic nuclei using recurrence analysis (2022, Monthly Notices of the Royal Astronomical Society)
  • Quantifying the Active Galactic Nucleus Fraction in Cosmic Voids via Mid-infrared Variability (2025, The Astrophysical Journal)

Their work covers main topics including:

  • Galaxies: Formation, Evolution, Phenomena
  • Stellar, planetary, and galactic studies
  • Astronomy and Astrophysical Research
  • Astrophysical Phenomena and Observations
  • Plant Water Relations and Carbon Dynamics
  • Astrophysics and Star Formation Studies
  • Astronomical Observations and Instrumentation

Vogeley frequently publishes in the following venues:

  • The Astrophysical Journal
  • Monthly Notices of the Royal Astronomical Society
  • arXiv (Cornell University)
  • The Astronomical Journal

The scientist has collaborated extensively with other researchers. Frequent co-authors include:

  • Gordon T. Richards
  • Jackeline Moreno
  • Weixiang Yu
  • M. J. Graham
  • Rebecca Phillipson

Best Publications

  • The Sloan Digital Sky Survey: Technical Summary

    D. G. York

  • The Sloan Digital Sky Survey: Technical summary

    Donald G. York;J. Adelman;John E. Anderson;Scott F. Anderson

  • The Seventh Data Release of the Sloan Digital Sky Survey

    Kevork N. Abazajian;Jennifer K. Adelman-Mccarthy;Marcel A. Agüeros;Sahar S. Allam;Sahar S. Allam

  • Cosmological parameters from SDSS and WMAP

    Max Tegmark;Max Tegmark;Michael Abram Strauss;Michael R. Blanton;Kevork Abazajian

  • Sloan Digital Sky Survey: Early data release

    C. Stoughton;R. H. Lupton;M. Bernardi;M. R. Blanton

  • Sloan digital sky survey: Early data release

    Chris Stoughton;Robert H. Lupton;Mariangela Bernardi;Michael R. Blanton;Michael R. Blanton

  • The Sixth Data Release of the Sloan Digital Sky Survey

    Jennifer K. Adelman-McCarthy;Marcel A. Agüeros;Sahar S. Allam;Sahar S. Allam;Carlos Allende Prieto

  • The fourth data release of the Sloan Digital Sky Survey

    Jennifer K. Adelman-McCarthy;Marcel A. Agüeros;Sahar S. Allam;Sahar S. Allam;Kurt S.J. Anderson

  • THE THREE-DIMENSIONAL POWER SPECTRUM OF GALAXIES FROM THE SLOAN DIGITAL SKY SURVEY

    Max Tegmark;Michael R. Blanton;Michael A. Strauss;Fiona Hoyle

  • The 3D power spectrum of galaxies from the SDSS

    M Tegmark;M Blanton;M Strauss;F Hoyle

  • Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Main Galaxy Sample

    Michael A. Strauss;David H. Weinberg;Robert H. Lupton;Vijay K. Narayanan

  • Baryon Acoustic Oscillations in the Sloan Digital Sky Survey Data Release 7 Galaxy Sample

    Will J. Percival;Beth A. Reid;Beth A. Reid;Beth A. Reid;Daniel J. Eisenstein;Neta Bahcall

  • Baryon Acoustic Oscillations in the Sloan Digital Sky Survey Data Release 7 Galaxy Sample

    Will J. Percival;Beth A. Reid;Daniel J. Eisenstein;Neta A. Bahcall

  • Cosmological constraints from the SDSS luminous red galaxies

    Max Tegmark;Daniel J. Eisenstein;Michael A. Strauss;David H. Weinberg

  • The Galaxy Luminosity Function and Luminosity Density at Redshift z=0.1

    Michael R. Blanton;David W. Hogg;J. Brinkmann;Andrew J. Connolly

  • The Second Data Release of the Sloan Digital Sky Survey

    Kevork Abazajian;Jennifer K. Adelman-McCarthy;Marcel A. Agüeros;Sahar S. Allam

  • Spectroscopic Target Selection for the Sloan Digital Sky Survey: The Luminous Red Galaxy Sample

    D. J. Eisenstein;J. Annis;J. E. Gunn;A. S. Szalay

  • The Galaxy Luminosity Function and Luminosity Density at Redshift z = 0.1*

    Michael R. Blanton;David W. Hogg;Neta A. Bahcall;J. Brinkmann

  • The first data release of the sloan digital sky survey

    Kevork Abazajian;Jennifer K. Adelman-McCarthy;Marcel A. Agüeros;Sahar S. Allam

  • Spectroscopic Target Selection for the Sloan Digital Sky Survey: The Luminous Red Galaxy Sample

    Daniel J. Eisenstein;Daniel J. Eisenstein;James Annis;James E. Gunn;Alexander S. Szalay

Frequent Co-Authors

Joshua A. Frieman
Joshua A. Frieman University of Chicago
Neta A. Bahcall
Neta A. Bahcall Princeton University
Michael A. Strauss
Michael A. Strauss University of Oklahoma
Robert C. Nichol
Robert C. Nichol University of Surrey
Alexander S. Szalay
Alexander S. Szalay Johns Hopkins University
Daniel J. Eisenstein
Daniel J. Eisenstein Harvard University
James E. Gunn
James E. Gunn Princeton University
István Csabai
István Csabai Eötvös Loránd University
Max Tegmark
Max Tegmark MIT
David H. Weinberg
David H. Weinberg The Ohio State University

External Links

Personal website of Michael S. Vogeley

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Best Scientists Citing Michael S. Vogeley

Donald P. Schneider

Donald P. Schneider

Pennsylvania State University

Publications: 697

Robert C. Nichol

Robert C. Nichol

University of Surrey

Publications: 341

Joshua A. Frieman

Joshua A. Frieman

University of Chicago

Publications: 312

Michael A. Strauss

Michael A. Strauss

University of Oklahoma

Publications: 290

Simon P. Driver

Simon P. Driver

University of Western Australia

Publications: 271

Xiaohui Fan

Xiaohui Fan

University of Arizona

Publications: 255

Daniel J. Eisenstein

Daniel J. Eisenstein

Harvard University

Publications: 255

Gordon T. Richards

Gordon T. Richards

Drexel University

Publications: 254

Donald G. York

Donald G. York

University of Chicago

Publications: 244

Joss Bland-Hawthorn

Joss Bland-Hawthorn

University of Sydney

Publications: 228

David J. Schlegel

David J. Schlegel

Lawrence Berkeley National Laboratory

Publications: 218

Adam D. Myers

Adam D. Myers

University of Wyoming

Publications: 217

Timothy C. Beers

Timothy C. Beers

University of Notre Dame

Publications: 216

Will J. Percival

Will J. Percival

University of Waterloo

Publications: 212

Patrick B. Hall

Patrick B. Hall

York University

Publications: 204

Daniel Thomas

Daniel Thomas

University of Portsmouth

Publications: 201

Trending Scientists

Zhiming Wang

Zhiming Wang

University of Electronic Science and Technology of China

Yoshimitsu Fukushima

Yoshimitsu Fukushima

Shinshu University

Kenneth I. Forster

Kenneth I. Forster

University of Arizona

Shelley McMain

Shelley McMain

Centre for Addiction and Mental Health

Joseph M. Vinetz

Joseph M. Vinetz

Yale University

Giuseppe Gobbi

Giuseppe Gobbi

University of Bologna

Christopher I. Petkov

Christopher I. Petkov

Newcastle University

P. Ciais

P. Ciais

French Alternative Energies and Atomic Energy Commission (CEA)

Luís Reynaldo Ferracciú Alleoni

Luís Reynaldo Ferracciú Alleoni

Universidade de São Paulo

Bradley K. Yoder

Bradley K. Yoder

University of Alabama at Birmingham

Michael S. Dinniman

Michael S. Dinniman

Old Dominion University

Mingzhe Dong

Mingzhe Dong

University of Calgary

David V. Rosowsky

David V. Rosowsky

Kansas State University

Ken Perlin

Ken Perlin

New York University

Peter J. Bentley

Peter J. Bentley

University College London

Junji Watanabe

Junji Watanabe

Tokyo Institute of Technology

Related Physics Rankings & Guides

2027 Best Online Physics Degree Programs

2027 Best Online Physics Degree Programs
2027 Best Online Space Studies Degree Programs

2027 Best Online Space Studies Degree Programs
2027 Admission Requirements for Physics Degree Programs

2027 Admission Requirements for Physics Degree Programs
2027 Fastest Online Urban Planning Degree Programs You Can Finish in Under 2 Years

2027 Fastest Online Urban Planning Degree Programs You Can Finish in Under 2 Years
2027 Most Affordable Online Space Studies Degree Programs

2027 Most Affordable Online Space Studies Degree Programs
2027 Most Affordable Online Physics Degree Programs

2027 Most Affordable Online Physics Degree Programs
2027 Online Photography Degree Programs for Veterans: GI Bill Benefits, Costs & Top Considerations

2027 Online Photography Degree Programs for Veterans: GI Bill Benefits, Costs & Top Considerations
2027 Online Photography Degree Programs Costs: Tuition & Fees

2027 Online Photography Degree Programs Costs: Tuition & Fees
2027 How To Become a Paleontologist? Salary & Career Paths

2027 How To Become a Paleontologist? Salary & Career Paths

Recently Published Articles

2027 How to Become a Mental Health Counselor in St. Petersburg, FL: Education Requirements & Certification

2027 How to Become a Mental Health Counselor in St. Petersburg, FL: Education Requirements & Certification
2027 Military-Friendly Online Aerospace Engineering Master's Degree Programs: Benefits, Accreditation & Career Outcomes

2027 Military-Friendly Online Aerospace Engineering Master's Degree Programs: Benefits, Accreditation & Career Outcomes
2027 Dietitian vs. Nutritionist: Explaining the Difference

2027 Dietitian vs. Nutritionist: Explaining the Difference
2027 Best Online MBA Programs in Healthcare Administration

2027 Best Online MBA Programs in Healthcare Administration
2027 Is Pediatric Nurse Practitioner a Hard Major? What Students Should Know

2027 Is Pediatric Nurse Practitioner a Hard Major? What Students Should Know
2027 Fine Arts Degree Careers Ranked by Salary, Growth, and Work-Life Balance

2027 Fine Arts Degree Careers Ranked by Salary, Growth, and Work-Life Balance
2027 Highest-Paying Healthcare Management Master's Specializations Ranked

2027 Highest-Paying Healthcare Management Master's Specializations Ranked
2027 How to Become an Art Teacher in Utah: Requirements & Certification

2027 How to Become an Art Teacher in Utah: Requirements & Certification
2027 Is a 2-Year Mathematics Degree Worth It: Accelerated Bachelor's ROI & Time Trade-Offs

2027 Is a 2-Year Mathematics Degree Worth It: Accelerated Bachelor's ROI & Time Trade-Offs
2027 Shortest Online Creative Writing Degree Master's Programs That Pay Well: Cost, Time to Completion, and Salary Outlook

2027 Shortest Online Creative Writing Degree Master's Programs That Pay Well: Cost, Time to Completion, and Salary Outlook
2027 Cheapest and Shortest Online Physical Education Degree Programs That Pay Well: Cost, Duration, and Salary Outlook

2027 Cheapest and Shortest Online Physical Education Degree Programs That Pay Well: Cost, Duration, and Salary Outlook
2027 What Jobs Can You Get With a Criminal Justice Bachelor's Degree?

2027 What Jobs Can You Get With a Criminal Justice Bachelor's Degree?
2027 Is an Addiction Counseling Master's Degree Worth It? ROI, Salary & Career Impact

2027 Is an Addiction Counseling Master's Degree Worth It? ROI, Salary & Career Impact
2027 Military-Friendly Online Nutrition Master's Degree Programs: Benefits, Accreditation & Career Outcomes

2027 Military-Friendly Online Nutrition Master's Degree Programs: Benefits, Accreditation & Career Outcomes
2027 Online Biology and Biological Sciences Bachelor's Degree Completion Programs for Working Adults

2027 Online Biology and Biological Sciences Bachelor's Degree Completion Programs for Working Adults
2027 Can You Get Into a Women's Health Nurse Practitioner Program with a Low GPA? Admission Chances & Workarounds

2027 Can You Get Into a Women's Health Nurse Practitioner Program with a Low GPA? Admission Chances & Workarounds
2027 Most Affordable Online Legal Studies Degree Programs

2027 Most Affordable Online Legal Studies Degree Programs
2027 Best Careers After a Communication Degree

2027 Best Careers After a Communication Degree
2027 How to Become a Middle School Math Teacher in South Carolina: Requirements & Certification

2027 How to Become a Middle School Math Teacher in South Carolina: Requirements & Certification
2027 Best Online EdD Programs with No GRE/GMAT Requirement

2027 Best Online EdD Programs with No GRE/GMAT Requirement
2027 Cheapest One-Year Online MBA Programs in the U.S.

2027 Cheapest One-Year Online MBA Programs in the U.S.