High-resolution dayside spectroscopy of WASP-189 b: detection of iron during the GHOST/Gemini south system verification run

Emily K. Deibert; Adam B. Langeveld; Mitchell E. Young; Laura Flagg; Jake D. Turner; Peter C. B. Smith; Ernst J. W. de Mooij; Ray Jayawardhana; Kristin Chiboucas; Roberto Gamen; Christian R. Hayes; Jeong-Eun Heo; Miji Jeong; Venu Kalari; Eder Martioli; Vinicius M. Placco; Siyi Xu; Ruben Diaz; Manuel Gomez-Jimenez; Carlos Quiroz; Roque Ruiz-Carmona; Chris Simpson; Alan W. McConnachie; John Pazder; Gregory Burley; Michael Ireland; Fletcher Waller; Trystyn A. M. Berg; J. Gordon Robertson; David O. Jones; Kathleen Labrie; Susan Ridgway; Joanna Thomas-Osip

doi:10.3847/1538-3881/ad643f

High-resolution dayside spectroscopy of WASP-189 b: detection of iron during the GHOST/Gemini south system verification run

Emily K. Deibert, Adam B. Langeveld, Mitchell E. Young, Laura Flagg, Jake D. Turner, Peter C. B. Smith, Ernst J. W. de Mooij, Ray Jayawardhana, Kristin Chiboucas, Roberto Gamen, Christian R. Hayes, Jeong-Eun Heo, Miji Jeong, Venu Kalari, Eder Martioli, Vinicius M. Placco, Siyi Xu, Ruben Diaz, Manuel Gomez-Jimenez, Carlos QuirozRoque Ruiz-Carmona, Chris Simpson, Alan W. McConnachie, John Pazder, Gregory Burley, Michael Ireland, Fletcher Waller, Trystyn A. M. Berg, J. Gordon Robertson, David O. Jones, Kathleen Labrie, Susan Ridgway, Joanna Thomas-Osip

Australian Astronomical Optics

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

3 Downloads (Pure)

Abstract

With high equilibrium temperatures and tidally locked rotation, ultra-hot Jupiters (UHJs) are unique laboratories within which to probe extreme atmospheric physics and chemistry. In this paper, we present high-resolution dayside spectroscopy of the UHJ WASP-189 b obtained with the new Gemini High-resolution Optical SpecTrograph (GHOST) at the Gemini South Observatory. The observations, which cover 3 hr of post-eclipse orbital phases, were obtained during the instrument’s System Verification run. We detect the planet’s atmosphere via the Doppler cross-correlation technique, and recover a detection of neutral iron in the planet’s dayside atmosphere at a significance of 7.5σ in the red arm of the data, verifying the presence of a thermal inversion. We also investigate the presence of other species in the atmosphere and discuss the implications of model injection/recovery tests. These results represent the first atmospheric characterization of an exoplanet with GHOST’s high-resolution mode, and demonstrate the potential of this new instrument in detecting and studying ultra-hot exoplanet atmospheres.

Original language	English
Article number	148
Pages (from-to)	1-16
Number of pages	16
Journal	Astronomical Journal
Volume	168
Issue number	4
DOIs	https://doi.org/10.3847/1538-3881/ad643f
Publication status	Published - 1 Oct 2024

Bibliographical note

© 2024. The Author(s). Published by the American Astronomical Society. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Access to Document

10.3847/1538-3881/ad643fLicence: CC BY

Publisher version (open access)Final published version, 2.24 MBLicence: CC BY

Cite this

Deibert, E. K., Langeveld, A. B., Young, M. E., Flagg, L., Turner, J. D., Smith, P. C. B., de Mooij, E. J. W., Jayawardhana, R., Chiboucas, K., Gamen, R., Hayes, C. R., Heo, J.-E., Jeong, M., Kalari, V., Martioli, E., Placco, V. M., Xu, S., Diaz, R., Gomez-Jimenez, M., ... Thomas-Osip, J. (2024). High-resolution dayside spectroscopy of WASP-189 b: detection of iron during the GHOST/Gemini south system verification run. Astronomical Journal, 168(4), 1-16. Article 148. https://doi.org/10.3847/1538-3881/ad643f

@article{9d6afa2f559b4f2eac20992053e7c9c1,

title = "High-resolution dayside spectroscopy of WASP-189 b: detection of iron during the GHOST/Gemini south system verification run",

abstract = "With high equilibrium temperatures and tidally locked rotation, ultra-hot Jupiters (UHJs) are unique laboratories within which to probe extreme atmospheric physics and chemistry. In this paper, we present high-resolution dayside spectroscopy of the UHJ WASP-189 b obtained with the new Gemini High-resolution Optical SpecTrograph (GHOST) at the Gemini South Observatory. The observations, which cover 3 hr of post-eclipse orbital phases, were obtained during the instrument{\textquoteright}s System Verification run. We detect the planet{\textquoteright}s atmosphere via the Doppler cross-correlation technique, and recover a detection of neutral iron in the planet{\textquoteright}s dayside atmosphere at a significance of 7.5σ in the red arm of the data, verifying the presence of a thermal inversion. We also investigate the presence of other species in the atmosphere and discuss the implications of model injection/recovery tests. These results represent the first atmospheric characterization of an exoplanet with GHOST{\textquoteright}s high-resolution mode, and demonstrate the potential of this new instrument in detecting and studying ultra-hot exoplanet atmospheres.",

author = "Deibert, \{Emily K.\} and Langeveld, \{Adam B.\} and Young, \{Mitchell E.\} and Laura Flagg and Turner, \{Jake D.\} and Smith, \{Peter C. B.\} and \{de Mooij\}, \{Ernst J. W.\} and Ray Jayawardhana and Kristin Chiboucas and Roberto Gamen and Hayes, \{Christian R.\} and Jeong-Eun Heo and Miji Jeong and Venu Kalari and Eder Martioli and Placco, \{Vinicius M.\} and Siyi Xu and Ruben Diaz and Manuel Gomez-Jimenez and Carlos Quiroz and Roque Ruiz-Carmona and Chris Simpson and McConnachie, \{Alan W.\} and John Pazder and Gregory Burley and Michael Ireland and Fletcher Waller and Berg, \{Trystyn A. M.\} and Robertson, \{J. Gordon\} and Jones, \{David O.\} and Kathleen Labrie and Susan Ridgway and Joanna Thomas-Osip",

note = "{\textcopyright} 2024. The Author(s). Published by the American Astronomical Society. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",

year = "2024",

month = oct,

day = "1",

doi = "10.3847/1538-3881/ad643f",

language = "English",

volume = "168",

pages = "1--16",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "American Astronomical Society",

number = "4",

}

Deibert, EK, Langeveld, AB, Young, ME, Flagg, L, Turner, JD, Smith, PCB, de Mooij, EJW, Jayawardhana, R, Chiboucas, K, Gamen, R, Hayes, CR, Heo, J-E, Jeong, M, Kalari, V, Martioli, E, Placco, VM, Xu, S, Diaz, R, Gomez-Jimenez, M, Quiroz, C, Ruiz-Carmona, R, Simpson, C, McConnachie, AW, Pazder, J, Burley, G, Ireland, M, Waller, F, Berg, TAM, Robertson, JG, Jones, DO, Labrie, K, Ridgway, S & Thomas-Osip, J 2024, 'High-resolution dayside spectroscopy of WASP-189 b: detection of iron during the GHOST/Gemini south system verification run', Astronomical Journal, vol. 168, no. 4, 148, pp. 1-16. https://doi.org/10.3847/1538-3881/ad643f

TY - JOUR

T1 - High-resolution dayside spectroscopy of WASP-189 b

T2 - detection of iron during the GHOST/Gemini south system verification run

AU - Deibert, Emily K.

AU - Langeveld, Adam B.

AU - Young, Mitchell E.

AU - Flagg, Laura

AU - Turner, Jake D.

AU - Smith, Peter C. B.

AU - de Mooij, Ernst J. W.

AU - Jayawardhana, Ray

AU - Chiboucas, Kristin

AU - Gamen, Roberto

AU - Hayes, Christian R.

AU - Heo, Jeong-Eun

AU - Jeong, Miji

AU - Kalari, Venu

AU - Martioli, Eder

AU - Placco, Vinicius M.

AU - Xu, Siyi

AU - Diaz, Ruben

AU - Gomez-Jimenez, Manuel

AU - Quiroz, Carlos

AU - Ruiz-Carmona, Roque

AU - Simpson, Chris

AU - McConnachie, Alan W.

AU - Pazder, John

AU - Burley, Gregory

AU - Ireland, Michael

AU - Waller, Fletcher

AU - Berg, Trystyn A. M.

AU - Robertson, J. Gordon

AU - Jones, David O.

AU - Labrie, Kathleen

AU - Ridgway, Susan

AU - Thomas-Osip, Joanna

N1 - © 2024. The Author(s). Published by the American Astronomical Society. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2024/10/1

Y1 - 2024/10/1

N2 - With high equilibrium temperatures and tidally locked rotation, ultra-hot Jupiters (UHJs) are unique laboratories within which to probe extreme atmospheric physics and chemistry. In this paper, we present high-resolution dayside spectroscopy of the UHJ WASP-189 b obtained with the new Gemini High-resolution Optical SpecTrograph (GHOST) at the Gemini South Observatory. The observations, which cover 3 hr of post-eclipse orbital phases, were obtained during the instrument’s System Verification run. We detect the planet’s atmosphere via the Doppler cross-correlation technique, and recover a detection of neutral iron in the planet’s dayside atmosphere at a significance of 7.5σ in the red arm of the data, verifying the presence of a thermal inversion. We also investigate the presence of other species in the atmosphere and discuss the implications of model injection/recovery tests. These results represent the first atmospheric characterization of an exoplanet with GHOST’s high-resolution mode, and demonstrate the potential of this new instrument in detecting and studying ultra-hot exoplanet atmospheres.

AB - With high equilibrium temperatures and tidally locked rotation, ultra-hot Jupiters (UHJs) are unique laboratories within which to probe extreme atmospheric physics and chemistry. In this paper, we present high-resolution dayside spectroscopy of the UHJ WASP-189 b obtained with the new Gemini High-resolution Optical SpecTrograph (GHOST) at the Gemini South Observatory. The observations, which cover 3 hr of post-eclipse orbital phases, were obtained during the instrument’s System Verification run. We detect the planet’s atmosphere via the Doppler cross-correlation technique, and recover a detection of neutral iron in the planet’s dayside atmosphere at a significance of 7.5σ in the red arm of the data, verifying the presence of a thermal inversion. We also investigate the presence of other species in the atmosphere and discuss the implications of model injection/recovery tests. These results represent the first atmospheric characterization of an exoplanet with GHOST’s high-resolution mode, and demonstrate the potential of this new instrument in detecting and studying ultra-hot exoplanet atmospheres.

UR - https://www.scopus.com/pages/publications/85204120146

U2 - 10.3847/1538-3881/ad643f

DO - 10.3847/1538-3881/ad643f

M3 - Article

AN - SCOPUS:85204120146

SN - 0004-6256

VL - 168

SP - 1

EP - 16

JO - Astronomical Journal

JF - Astronomical Journal

IS - 4

M1 - 148

ER -

High-resolution dayside spectroscopy of WASP-189 b: detection of iron during the GHOST/Gemini south system verification run

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this