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Education and qualifications (3)

California Institute of Technology: Pasadena, CA, US

2017-09-01 to present | PhD (Division of Geological and Planetary Sciences)
Education
Source: Self-asserted source
Yayaati Chachan

University of Cambridge: Cambridge, Cambridgeshire, GB

2016-10-01 to 2017-06-30 | M.Sci (Institute of Astronomy)
Education
Source: Self-asserted source
Yayaati Chachan

University of Cambridge: Cambridge, Cambridgeshire, GB

2013-10-01 to 2016-06-30 | B.A. (Natural Sciences, Cavendish Laboratory)
Education
Source: Self-asserted source
Yayaati Chachan

Works (24)

CRIRES+ and ESPRESSO Reveal an Atmosphere Enriched in Volatiles Relative to Refractories on the Ultrahot Jupiter WASP-121b

The Astronomical Journal
2025-01-01 | Journal article
Contributors: Stefan Pelletier; Björn Benneke; Yayaati Chachan; Luc Bazinet; Romain Allart; H. Jens Hoeijmakers; Alexis Lavail; Bibiana Prinoth; Louis-Philippe Coulombe; Joshua D. Lothringer et al.
Source: check_circle
Crossref

Retrievals on NIRCam Transmission and Emission Spectra of HD 189733b with PLATON 6, a GPU Code for the JWST Era

The Astronomical Journal
2025-01-01 | Journal article
Contributors: Michael Zhang; Kimberly Paragas; Jacob L. Bean; Joseph Yeung; Yayaati Chachan; Thomas P. Greene; Jonathan Lunine; Drake Deming
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Crossref

Impacting Atmospheres: How Late-stage Pollution Alters Exoplanet Composition

The Astrophysical Journal
2024-12-01 | Journal article
Contributors: Emilia Vlahos; Yayaati Chachan; Vincent Savignac; Eve J. Lee
Source: check_circle
Crossref

Planet Mass Function around M Stars at 1–10 au: A Plethora of Sub-Earth Mass Objects

The Astrophysical Journal
2024-12-01 | Journal article
Contributors: Yayaati Chachan; Eve J. Lee
Source: check_circle
Crossref

Atmospheric Characterization of the Super-Jupiter HIP 99770 b with KPIC

The Astronomical Journal
2024-09-01 | Journal article
Contributors: Yapeng Zhang; Jerry W. Xuan; Dimitri Mawet; Jason J. Wang; Chih-Chun Hsu; Jean-Bapiste Ruffio; Heather A. Knutson; Julie Inglis; Geoffrey A. Blake; Yayaati Chachan et al.
Source: check_circle
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Atmospheric Retrievals of the Young Giant Planet ROXs 42B b from Low- and High-resolution Spectroscopy

The Astronomical Journal
2024-05-01 | Journal article
Contributors: Julie Inglis; Nicole L. Wallack; Jerry W. Xuan; Heather A. Knutson; Yayaati Chachan; Marta L. Bryan; Brendan P. Bowler; Aishwarya Iyer; Tiffany Kataria; Björn Benneke
Source: check_circle
Crossref

Small Planets around Cool Dwarfs: Enhanced Formation Efficiency of Super-Earths around M Dwarfs

The Astrophysical Journal Letters
2023-07-01 | Journal article
Contributors: Yayaati Chachan; Eve J. Lee
Source: check_circle
Crossref

Breaking Degeneracies in Formation Histories by Measuring Refractory Content in Gas Giants

The Astrophysical Journal
2023-02-01 | Journal article
Contributors: Yayaati Chachan; Heather A. Knutson; Joshua Lothringer; Geoffrey A. Blake
Source: check_circle
Crossref

Constraining the Densities of the Three Kepler-289 Planets with Transit Timing Variations

The Astronomical Journal
2023-02-01 | Journal article
Contributors: Michael Greklek-McKeon; Heather A. Knutson; Shreyas Vissapragada; Daniel Jontof-Hutter; Yayaati Chachan; Daniel Thorngren; Gautam Vasisht
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Crossref

The California Legacy Survey. III. On the Shoulders of (Some) Giants: The Relationship between Inner Small Planets and Outer Massive Planets

The Astrophysical Journal Supplement Series
2022-09-01 | Journal article
Contributors: Lee J. Rosenthal; Heather A. Knutson; Yayaati Chachan; Fei Dai; Andrew W. Howard; Benjamin J. Fulton; Ashley Chontos; Justin R. Crepp; Paul A. Dalba; Gregory W. Henry et al.
Source: check_circle
Crossref

The Hubble PanCET Program: A Featureless Transmission Spectrum for WASP-29b and Evidence of Enhanced Atmospheric Metallicity on WASP-80b

The Astronomical Journal
2022-07-01 | Journal article
Contributors: Ian Wong; Yayaati Chachan; Heather A. Knutson; Gregory W. Henry; Danica Adams; Tiffany Kataria; Björn Benneke; Peter Gao; Drake Deming; Mercedes López-Morales et al.
Source: check_circle
Crossref

Kepler-167e as a Probe of the Formation Histories of Cold Giants with Inner Super-Earths

The Astrophysical Journal
2022-02-01 | Journal article
Contributors: Yayaati Chachan; Paul A. Dalba; Heather A. Knutson; Benjamin J. Fulton; Daniel Thorngren; Charles Beichman; David R. Ciardi; Andrew W. Howard; Judah Van Zandt
Source: check_circle
Crossref

A Search for Planetary Metastable Helium Absorption in the V1298 Tau System

The Astronomical Journal
2021-11-01 | Journal article
Contributors: Shreyas Vissapragada; Gudmundur Stefánsson; Michael Greklek-McKeon; Antonija Oklopčić; Heather A. Knutson; Joe P. Ninan; Suvrath Mahadevan; Caleb I. Cañas; Yayaati Chachan; William D. Cochran et al.
Source: check_circle
Crossref

Radial Gradients in Dust-to-gas Ratio Lead to Preferred Region for Giant Planet Formation

The Astrophysical Journal
2021-09-01 | Journal article
Contributors: Yayaati Chachan; Eve J. Lee; Heather A. Knutson
Source: check_circle
Crossref

Metastable Helium Reveals an Extended Atmosphere for the Gas Giant HAT-P-18b

The Astrophysical Journal Letters
2021-03-01 | Journal article
Contributors: Kimberly Paragas; Shreyas Vissapragada; Heather A. Knutson; Antonija Oklopčić; Yayaati Chachan; Michael Greklek-McKeon; Fei Dai; Samaporn Tinyanont; Gautam Vasisht
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Crossref

A Featureless Infrared Transmission Spectrum for the Super-puff Planet Kepler-79d

The Astronomical Journal
2020-11-01 | Journal article
Contributors: Yayaati Chachan; Daniel Jontof-Hutter; Heather A. Knutson; Danica Adams; Peter Gao; Björn Benneke; Zachory Berta-Thompson; Fei Dai; Drake Deming; Eric B. Ford et al.
Source: check_circle
Crossref

PLATON II: New Capabilities and a Comprehensive Retrieval on HD 189733b Transit and Eclipse Data

The Astrophysical Journal
2020-08-01 | Journal article
Contributors: Michael Zhang; Yayaati Chachan; Eliza M.-R. Kempton; Heather A. Knutson; Wenjun (Happy) Chang
Source: check_circle
Crossref

Optical to Near-infrared Transmission Spectrum of the Warm Sub-Saturn HAT-P-12b

The Astronomical Journal
2020-05-01 | Journal article
Contributors: Ian Wong; Björn Benneke; Peter Gao; Heather A. Knutson; Yayaati Chachan; Gregory W. Henry; Drake Deming; Tiffany Kataria; Elspeth K. H. Lee; Nikolay Nikolov et al.
Source: check_circle
Crossref

Diffuser-assisted Infrared Transit Photometry for Four Dynamically Interacting Kepler Systems

The Astronomical Journal
2020-03-01 | Journal article
Contributors: Shreyas Vissapragada; Daniel Jontof-Hutter; Avi Shporer; Heather A. Knutson; Leo Liu; Daniel Thorngren; Eve J. Lee; Yayaati Chachan; Dimitri Mawet; Maxwell A. Millar-Blanchaer et al.
Source: check_circle
Crossref

A Hubble PanCET Study of HAT-P-11b: A Cloudy Neptune with a Low Atmospheric Metallicity

The Astronomical Journal
2019-12-01 | Journal article
Contributors: Yayaati Chachan; Heather A. Knutson; Peter Gao; Tiffany Kataria; Ian Wong; Gregory W. Henry; Bjorn Benneke; Michael Zhang; Joanna Barstow; Jacob L. Bean et al.
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Crossref

Dust accretion in binary systems: implications for planets and transition discs

Monthly Notices of the Royal Astronomical Society
2019-09-02 | Journal article
Contributors: Yayaati Chachan; Richard A Booth; Amaury H M J Triaud; Cathie Clarke
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Crossref

A linear approximation for the effect of cylindrical differential rotation on gravitational moments: Application to the non-unique interpretation of Saturn’s gravity

Icarus
2019-05 | Journal article
Contributors: Yayaati Chachan; David J. Stevenson
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Crossref

Forward Modeling and Retrievals with PLATON, a Fast Open-source Tool

Publications of the Astronomical Society of the Pacific
2019-03-01 | Journal article
Part of ISSN: 0004-6280
Part of ISSN: 1538-3873
Source: Self-asserted source
Yayaati Chachan

On the Role of Dissolved Gases in the Atmosphere Retention of Low-mass Low-density Planets

The Astrophysical Journal
2018-02-10 | Journal article
Contributors: Yayaati Chachan; David J. Stevenson
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Crossref