2026 Daniel Apai: Physics Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Physics	83	2801	2664	1375	1282	441	19448

Discipline name

D-Index

World Ranking

Current World Ranking

National Ranking

Current National Ranking

Publications

Citations

Physics

2801

2664

1375

1282

441

19448

Overview

Daniel Apai is affiliated with the University of Arizona in the United States and primarily conducts research in the field of Physics and Astronomy. Their work encompasses several subfields including Astronomy and Astrophysics, Instrumentation, Atomic and Molecular Physics and Optics, General Health Professions, and Atmospheric Science.

The researcher's main topics of study focus on stellar, planetary, and galactic phenomena, further extending into astronomy and astrophysical research, astro and planetary science, and astrophysics related to star formation. Other notable topics include gamma-ray bursts and supernovae, adaptive optics and wavefront sensing, and atmospheric ozone and climate.

Frequent co-authors collaborating with Daniel Apai include Adam J. Burgasser, Benjamin V. Rackham, L. R. Bedin, D. Nardiello, and Kevin Wagner. These partnerships have contributed to publications across a variety of respected venues.

The primary publication venues for their work are:

arXiv (Cornell University)
The Astronomical Journal
The Astrophysical Journal
Astronomy and Astrophysics
Astronomische Nachrichten

Significant recent papers authored or co-authored by Daniel Apai include:

The effect of stellar contamination on low-resolution transmission spectroscopy: needs identified by NASA's Exoplanet Exploration Program Study Analysis Group 21 (2023), published in RAS Techniques and Instruments
ACCESS and LRG-BEASTS: A Precise New Optical Transmission Spectrum of the Ultrahot Jupiter WASP-103b (2021), published in The Astronomical Journal
Weather on Other Worlds. V. The Three Most Rapidly Rotating Ultra-cool Dwarfs (2021), published in The Astronomical Journal
Imaging low-mass planets within the habitable zone of α Centauri (2021), published in the Repository for Publications and Research Data (ETH Zurich)
Direct images and spectroscopy of a giant protoplanet driving spiral arms in MWC 758 (2023), published in Nature Astronomy

Best Publications

A Giant Planet Imaged in the Disk of the Young Star β Pictoris

A.-M. Lagrange;M. Bonnefoy;G. Chauvin;D. Apai

958
Citations
A Steeper than Linear Disk Mass-Stellar Mass Scaling Relation

I. Pascucci;L. Testi;G. J. Herczeg;F. Long

517
Citations
A steeper than linear disk mass-stellar mass scaling relation

Ilaria Pascucci;L. Testi;L. Testi;Gregory J. Herczeg;F. Long

487
Citations
A Combined Subaru/VLT/MMT 1--5 Micron Study of Planets Orbiting HR 8799: Implications for Atmospheric Properties, Masses, and Formation

Thayne Currie;Adam S. Burrows;Yoichi Itoh;Soko Matsumura

386
Citations
The Transit Light Source Effect: False Spectral Features and Incorrect Densities for M-dwarf Transiting Planets

Benjamin V. Rackham;Dániel Apai;Mark S. Giampapa

344
Citations
A COMBINED SUBARU/VLT/MMT 1-5 μm STUDY OF PLANETS ORBITING HR 8799: IMPLICATIONS FOR ATMOSPHERIC PROPERTIES, MASSES, AND FORMATION

Thayne Currie;Adam S. Burrows;Yoichi Itoh;Soko Matsumura

302
Citations
A STELLAR-MASS-DEPENDENT DROP IN PLANET OCCURRENCE RATES

Gijs D. Mulders;Ilaria Pascucci;Dániel Apai

293
Citations
Nearby Debris Disk Systems with High Fractional Luminosity Reconsidered

A. Moor;P. Abraham;A. Derekas;A. Derekas;C. S. Kiss

271
Citations
First Light LBT AO Images of HR 8799 bcde at 1.65 and 3.3 Microns: New Discrepancies between Young Planets and Old Brown Dwarfs

Andrew J. Skemer;Philip M. Hinz;Simone Esposito;Adam Burrows

260
Citations
AN INCREASE in the MASS of PLANETARY SYSTEMS AROUND LOWER-MASS STARS

Gijs D. Mulders;Ilaria Pascucci;Dániel Apai

252
Citations
HST SPECTRAL MAPPING OF L/T TRANSITION BROWN DWARFS REVEALS CLOUD THICKNESS VARIATIONS

Dániel Apai;Jacqueline Radigan;Jacqueline Radigan;Esther Buenzli;Adam Burrows

249
Citations
Orbital characterization of the eta Pictoris b giant planet

G. Chauvin;A.-M. Lagrange;H. Beust;M. Bonnefoy

244
Citations
Discovery of H-alpha Emission from the Close Companion Inside the Gap of Transitional Disk HD142527

L. M. Close;K. B. Follette;J. R. Males;A. Puglisi

240
Citations
The Onset of Planet Formation in Brown Dwarf Disks

Dániel Apai;Dániel Apai;Ilaria Pascucci;Jeroen Bouwman;Antonella Natta

232
Citations
First light of the VLT planet finder SPHERE. III. New spectrophotometry and astrometry of the HR8799 exoplanetary system

A. Zurlo;A. Vigan;R. Galicher;A.-L. Maire

231
Citations
The near-infrared spectral energy distribution of {eta} Pictoris b

M. Bonnefoy;A. Boccaletti;A.-M. Lagrange;F. Allard

228
Citations
WEATHER ON OTHER WORLDS. II. SURVEY RESULTS: SPOTS ARE UBIQUITOUS ON L AND T DWARFS

Stanimir A. Metchev;Stanimir A. Metchev;Aren Heinze;Dániel Apai;Davin Flateau

221
Citations
Brown Dwarf Photospheres are Patchy: A Hubble Space Telescope Near-infrared Spectroscopic Survey Finds Frequent Low-level Variability

Esther Buenzli;Esther Buenzli;Dániel Apai;Jacqueline Radigan;I. Neill Reid

209
Citations
FIRST LIGHT LBT AO IMAGES OF HR 8799 bcde AT 1.6 AND 3.3 μm: NEW DISCREPANCIES BETWEEN YOUNG PLANETS AND OLD BROWN DWARFS*

Andrew J. Skemer;Philip M. Hinz;Simone Esposito;Adam Burrows

205
Citations
Orbital characterization of the β Pictoris b giant planet

G. Chauvin;G. Chauvin;A.-M. Lagrange;H. Beust;M. Bonnefoy

191
Citations