SG
Siddharth Gandhi
astro-ph.EPastro-ph.SRastro-ph.IMphysics.ao-ph
On Valency
published · living versionsW_v2snk925·v1 · currentpublished
A remnant planetary core in the hot-Neptune desert
with David J. Armstrong, Théo A. Lopez, Vardan Adibekyan, Richard A. Booth +89
1 version
Preprints & journals
66 papers in the corpus · 2016–2026Native-resolution retrievals of VHS 1256-1257 b spanning the JWST/NIRSpec wavelength range: Chemical composition of a partially cloudy atmosphere2607.00952v1 · S. de Regt, N. Whiteford, B. E. Miles et al.2026 · 0 citationsarXiv
The ESO SupJup Survey XI. Atmospheric properties of six isolated M- and L-type dwarfs with CRIRES+2606.27107v1 · C. R. Malcolm, N. Grasser, I. A. G. Snellen et al.2026 · 0 citationsarXiv
Magnetic field strengths of hot giant exoplanets consistent with Solar System values2606.22455v1 · Julia V. Seidel, Vivien Parmentier, Bibiana Prinoth et al.2026 · 4 citationsarXiv
Unraveling the Mystery of the Peculiar and Young Hot Jupiter CoRoT-2b II: Phase Resolved Emission Spectroscopy with VLT/CRIRES+ and Gemini-S/IGRINS2606.17304v1 · Aurora Y. Kesseli, Siddharth Gandhi, Lisa Dang et al.2026 · 0 citationsarXiv
The CRIMSON survey I: super-stellar SiO in the directly imaged companion TWA 5 B from high-resolution M-band spectroscopy2606.03824v1 · Luke T. Parker, Jayne L. Birkby, Siddharth Gandhi et al.2026 · 0 citationsarXiv
Comparing telluric removal methods in their capability to recover injected exoplanet atmosphere signals with high resolution emission spectroscopy2605.28635v1 · Marcelo Aron Fetzner Keniger, Matteo Brogi, David Armstrong et al.2026 · 0 citationsarXiv
The ESO SupJup Survey. X. A carbon isotope contrast in the young ROXs 12 system2605.03508v1 · N. Grasser, I. A. G. Snellen, S. de Regt et al.2026 · 0 citationsarXiv
The ESO SupJup Survey IX: Isotopic evidence of a recent formation for Luhman 16AB2602.03409v1 · S. de Regt, I. A. G. Snellen, D. Gonz'alez Picos et al.2026 · 0 citationsarXiv
Direct imaging characterization of cool gaseous planets2512.13766v1 · Michiel Min, Jo Barstow, Laura C. Mayorga et al.2025 · 0 citationsarXiv
pyROX: Rapid Opacity X-sections2510.20870v1 · Sam de Regt, Siddharth Gandhi, Louis Siebenaler et al.2025 · 0 citationsarXiv
Disentangling disc and atmospheric signatures of young brown dwarfs with JWST/NIRSpec2509.11694v1 · D. Gonz'alez Picos, S. de Regt, S. Gandhi et al.2025 · 6 citationsA&A 703, A65 (2025)
Astroclimes -- measuring the abundance of CO and CH in the Earth's atmosphere using astronomical observations2509.10258v1 · Marcelo Aron Fetzner Keniger, David Armstrong, Matteo Brogi et al.2025 · 0 citationsarXiv
The Roasting Marshmallows Program with IGRINS on Gemini South III: Seeing deeper into the metal depleted atmosphere of a gas-giant on the cusp of the hot to ultra-hot Jupiter transition2507.07204v1 · Vatsal Panwar, Matteo Brogi, Krishna Kanumalla et al.2025 · 1 citationarXiv
The ESO SupJup Survey VIII. Chemical fingerprints of young L dwarf twins2507.02706v1 · N. Grasser, I. A. G. Snellen, S. de Regt et al.2025 · 8 citationsA&A, Volume 698, A252, June 2025
Tracing the formation and migration history: molecular signatures in the atmosphere of misaligned hot Jupiter WASP-94Ab using JWST NIRSpec/G395H2505.11224v2 · Eva-Maria Ahrer, Siddharth Gandhi, Lili Alderson et al.2025 · 13 citationsarXiv
The ESO SupJup Survey VII: Clouds and line asymmetries in CRIRES J-band spectra of the Luhman 16 binary2503.21266v1 · S. de Regt, I. A. G. Snellen, N. F. Allard et al.2025 · 13 citationsA&A 696, A225 (2025)
Detectability of oxygen fugacity regimes in the magma ocean world 55 Cancri e at high spectral resolution2503.15196v1 · Spandan Dash, Matteo Brogi, Fabian Lukas Seidler et al.2025 · 1 citationarXiv
The ESO SupJup Survey V: Exploring Atmospheric Variability and Orbit of the Super-Jupiter AB Pictoris b with CRIRES+2501.05114v1 · Siddharth Gandhi, Sam de Regt, Ignas Snellen et al.2025 · 19 citationsarXiv
The ESO SupJup Survey IV. Unveiling the carbon isotope ratio of GQ Lup B and its host star2501.01789v1 · D. Gonz'alez Picos, I.A.G. Snellen, S. de Regt et al.2025 · 20 citationsarXiv
Time Resolved Absorption of Six Chemical Species With MAROON-X Points to Strong Drag in the Ultra Hot Jupiter TOI-1518 b2412.01472v4 · A. Simonnin, V. Parmentier, J.P. Wardenier et al.2024 · 18 citationsA&A 698, A314 (2025)
The mystery of water in the atmosphere of Boötis b continues: insights from revisiting archival CRIRES observations2410.08178v1 · Vatsal Panwar, Matteo Brogi, Siddharth Gandhi et al.2024 · 5 citationsarXiv
TOI-5005 b: A super-Neptune in the savanna near the ridge2409.18129v2 · A. Castro-Gonz'alez, J. Lillo-Box, D. J. Armstrong et al.2024 · 36 citationsA&A 691, A233 (2024)
The ESO SupJup Survey III: Confirmation of 13CO in YSES 1 b and Atmospheric Detection of YSES 1 c with CRIRES+2409.16660v1 · Yapeng Zhang, Dar'io Gonz'alez Picos, Sam de Regt et al.2024 · 37 citationsarXiv
The ESO SupJup Survey II: The 12C/13C ratios of three young brown dwarfs with CRIRES2407.07678v3 · D. Gonz'alez Picos, I.A.G. Snellen, S. de Regt et al.2024 · 26 citationsA&A 689, A212 (2024)
Peering above the clouds of the warm Neptune GJ 436b with CRIRES+2407.06707v1 · Natalie Grasser, Ignas A. G. Snellen, Rico Landman et al.2024 · 17 citationsA&A 688, A191 (2024)
Phase-resolving the absorption signatures of water and carbon monoxide in the atmosphere of the ultra-hot Jupiter WASP-121b with GEMINI-S/IGRINS2406.09641v3 · Joost P. Wardenier, Vivien Parmentier, Michael R. Line et al.2024 · 30 citationsarXiv
The ESO SupJup Survey I: Chemical and isotopic characterisation of the late L-dwarf DENIS J0255-4700 with CRIRES2405.10841v1 · S. de Regt, S. Gandhi, I. A. G. Snellen et al.2024 · 39 citationsA&A 688, A116 (2024)
Revealing HO dissociation in WASP-76~b through combined high- and low-resolution transmission spectroscopy2405.01933v1 · Siddharth Gandhi, Rico Landman, Ignas Snellen et al.2024 · 12 citationsarXiv
High-resolution atmospheric retrievals of WASP-76b transmission spectroscopy with ESPRESSO: Monitoring limb asymmetries across multiple transits2404.10463v2 · Cathal Maguire, Neale P. Gibson, Stevanus K. Nugroho et al.2024 · 20 citationsA&A 687, A49 (2024)
Atmospheric characterisation and tighter constraints on the orbital misalignment of WASP-94 A b with HARPS2404.06550v1 · E. Ahrer, J. V. Seidel, L. Doyle et al.2024 · 0 citationsarXiv
Constraints on atmospheric water abundance and cloud deck pressure in the warm Neptune GJ 3470 b via CARMENES transmission spectroscopy2404.06648v1 · Spandan Dash, Matteo Brogi, Siddharth Gandhi et al.2024 · 18 citationsarXiv
Pictoris b through the eyes of the upgraded CRIRES+2311.13527v1 · Rico Landman, Tomas Stolker, Ignas Snellen et al.2023 · 60 citationsarXiv
JWST measurements of C, O and O in the atmosphere of super-Jupiter VHS 1256 b2311.05349v1 · Siddharth Gandhi, Sam de Regt, Ignas Snellen et al.2023 · 48 citationsarXiv
Retrieval survey of metals in six ultra-hot Jupiters: Trends in chemistry, rain-out, ionisation and atmospheric dynamics2305.17228v1 · Siddharth Gandhi, Aurora Kesseli, Yapeng Zhang et al.2023 · 72 citationsThe Astronomical Journal, Volume 165, 242 (2023)
LRG-BEASTS: Evidence for clouds in the transmission spectrum of HATS-46 b2303.07381v1 · E. Ahrer, P. J. Wheatley, S. Gandhi et al.2023 · 8 citationsarXiv
The hot Neptune WASP-166 b with ESPRESSO III: A blue-shifted tentative water signal constrains the presence of clouds2302.04794v1 · M. Lafarga, M. Brogi, S. Gandhi et al.2023 · 19 citationsarXiv
Early Insights for Atmospheric Retrievals of Exoplanets using JWST Transit Spectroscopy2301.02564v1 · Savvas Constantinou, Nikku Madhusudhan, Siddharth Gandhi2023 · 43 citationsarXiv
The Roasting Marshmallows Program with IGRINS on Gemini South I: Composition and Climate of the Ultra Hot Jupiter WASP-18 b2209.15548v1 · Matteo Brogi, Vanessa Emeka-Okafor, Michael R. Line et al.2022 · 80 citationsarXiv
Detecting HO with CRIRES+: the case of WASP-20b2209.11506v1 · M. C. Maimone, M. Brogi, A. Chiavassa et al.2022 · 6 citationsA&A 667, A106 (2022)
The GAPS Programme at TNG XXXVIII. Five molecules in the atmosphere of the warm giant planet WASP-69b detected at high spectral resolution2207.09760v2 · G. Guilluy, P. Giacobbe, I. Carleo et al.2022 · 51 citationsA&A 665, A104 (2022)
The GAPS Programme at TNG XXXIX -- Multiple molecular species in the atmosphere of the warm giant planet WASP-80 b unveiled at high resolution with GIANO-B2207.09761v1 · Ilaria Carleo, Paolo Giacobbe, Gloria Guilluy et al.2022 · 39 citationsarXiv
Spatially-resolving the terminator: Variation of Fe, temperature and winds in WASP-76 b across planetary limbs and orbital phase2206.11268v1 · Siddharth Gandhi, Aurora Kesseli, Ignas Snellen et al.2022 · 61 citationsarXiv
Water observed in the atmosphere of {\tau} Bootis Ab with CARMENES/CAHA2205.14975v1 · Rebecca K. Webb, Siddharth Gandhi, Matteo Brogi et al.2022 · 14 citationsarXiv
The Hot Neptune WASP-166 b with ESPRESSO II: Confirmation of atmospheric sodium2203.04494v1 · J. V. Seidel, H. M. Cegla, L. Doyle et al.2022 · 20 citationsarXiv
LRG-BEASTS: sodium absorption and Rayleigh scattering in the atmosphere of WASP-94A b using NTT/EFOSC22201.02212v1 · E. Ahrer, P. J. Wheatley, J. Kirk et al.2022 · 31 citationsarXiv
Publisher Correction: A solar C/O and sub-solar metallicity in a hot Jupiter atmosphere.34912124 · Line, Michael R, Brogi, Matteo, Bean, Jacob L et al.2022 · 0 citationsNature. 2022;601(7891):E3
TESS and HARPS reveal two sub-Neptunes around TOI 10622105.01945v2 · J. F. Otegi, F. Bouchy, R. Helled et al.2021 · 9 citationsA&A 653, A105 (2021)
Coupled Day-Night Models of Exoplanetary Atmospheres2010.07303v1 · Siddharth Gandhi, Adam S. Jermyn2020 · 12 citationsarXiv
Seeing above the Clouds with High Resolution Spectroscopy2008.11464v2 · Siddharth Gandhi, Matteo Brogi, Rebecca K. Webb2020 · 58 citationsarXiv
A remnant planetary core in the hot-Neptune desert.32612222 · Armstrong, David J, Lopez, Théo A, Adibekyan, Vardan et al.2020 · 126 citationsNature. 2020;583(7814):39-42
Career total: 91 works. 66 are in this corpus.Showing the 50 most recent.
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