ExoGemS High-resolution Transmission Spectroscopy of WASP-76b with GRACES

被引：7

作者：

Deibert, Emily K. ^{[1
]}

de Mooij, Ernst J. W. ^{[2
]}

Jayawardhana, Ray ^{[3
]}

Turner, Jake D. ^{[3
]}

Ridden-Harper, Andrew ^{[4
]}

Hood, Callie E. ^{[5
]}

Fortney, Jonathan J. ^{[5
]}

Flagg, Laura ^{[3
]}

Fossati, Luca ^{[6
]}

Allart, Romain ^{[7
,8
]}

Brogi, Matteo ^{[9
,10
]}

MacDonald, Ryan J. ^{[11
]}

机构：

[1] NSF, Gemini Observ, NOIRLab, Casilla 603, La Serena, Chile

[2] Queens Univ Belfast, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland

[3] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA

[4] Las Cumbres Observ, 6740 Cortona Dr,Suite 102, Goleta, CA 93117 USA

[5] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA

[6] Austrian Acad Sci, Space Res Inst, Schmiedlstr 6, A-8042 Graz, Austria

[7] Univ Montreal, Dept Phys, Montreal, PQ H3T 1J4, Canada

[8] Univ Montreal, Inst Res Exoplanets, Montreal, PQ H3T 1J4, Canada

[9] Univ Turin, Dipartimento Fis, Via Pietro Giuria 1, I-10125 Turin, Italy

[10] INAF, Osservatorio Astron Torino, Via Osservatorio 20, I-10025 Pino Torinese, Italy

[11] Univ Michigan, Dept Astron, 1085 S Univ Ave, Ann Arbor, MI 48109 USA

来源：

ASTRONOMICAL JOURNAL | 2023年 / 166卷 / 04期

基金：

加拿大自然科学与工程研究理事会; 英国科学技术设施理事会;

关键词：

ULTRA-HOT JUPITERS; IONIZED CALCIUM; SPECTRAL SURVEY; ORBITAL MOTION; ATMOSPHERES; WATER; DISSOCIATION; WASP-121B; DAYSIDE; DETECTIONS;

D O I：

10.3847/1538-3881/acebdc

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present high-resolution transmission spectroscopy of WASP-76b with Gemini Remote Access to CFHT ESPaDOnS Spectrograph (GRACES)/Gemini North obtained as part of the ExoGemS survey. With a broad spectral range of 400-1050 nm and a relatively high resolution of similar to 66,000, these observations are particularly well suited to searching for atomic and molecular atmospheric species via the Doppler cross-correlation technique. We recover absorption features due to neutral iron (Fe i), sodium (Na i), and ionized calcium (Ca ii) at high significance (>5 sigma), and investigate possible atmospheric temperatures and wind speeds. We also report tentative (>3 sigma) detections of Li i, K i, Cr i, and V i in the atmosphere of WASP-76b. Finally, we report nondetections of a number of other species, some of which have previously been detected with other instruments. Through model injection/recovery tests, we demonstrate that many of these species are not expected to be detected in our observations. These results allow us to place GRACES and the ExoGemS survey in context with other high-resolution optical spectrographs.

引用

页数：25

共 59 条

[1] Search for water vapor in the high-resolution transmission spectrum of HD 189733b in the visible [J].

Allart, R. ;

Lovis, C. ;

Pino, L. ;

Wyttenbach, A. ;

Ehrenreich, D. ;

Pepe, F. .

ASTRONOMY & ASTROPHYSICS, 2017, 606

[2]

Anderson DR, 2018, Arxiv, DOI arXiv:1809.04897

[3] H- Opacity and Water Dissociation in the Dayside Atmosphere of the Very Hot Gas Giant WASP-18b [J].

Arcangeli, Jacob ;

Desert, Jean-Michel ;

Line, Michael R. ;

Bean, Jacob L. ;

Parmentier, Vivien ;

Stevenson, Kevin B. ;

Kreidberg, Laura ;

Fortney, Jonathan J. ;

Mansfield, Megan ;

Showman, Adam P. .

ASTROPHYSICAL JOURNAL LETTERS, 2018, 855 (02)

[4] Increased Heat Transport in Ultra-hot Jupiter Atmospheres through H2 Dissociation and Recombination [J].

Bell, Taylor J. ;

Cowan, Nicolas B. .

ASTROPHYSICAL JOURNAL LETTERS, 2018, 857 (02)

[5] Mining the Ultrahot Skies of HAT-P-70b: Detection of a Profusion of Neutral and Ionized Species [J].

Bello-Arufe, Aaron ;

Cabot, Samuel H. C. ;

Mendonca, Joao M. ;

Buchhave, Lars A. ;

Rathcke, Alexander D. .

ASTRONOMICAL JOURNAL, 2022, 163 (02)

[6]

Birkby J.L., 2018, Handbook of Exoplanets, P16, DOI 10.1007/978-3-319-55333-7_16

[7] Atmospheric Rossiter-McLaughlin effect and transmission spectroscopy of WASP-121b with ESPRESSO [J].

Borsa, F. ;

Allart, R. ;

Casasayas-Barris, N. ;

Tabernero, H. ;

Zapatero Osorio, M. R. ;

Cristiani, S. ;

Pepe, F. ;

Rebolo, R. ;

Santos, N. C. ;

Adibekyan, V ;

Bourrier, V ;

Demangeon, O. D. S. ;

Ehrenreich, D. ;

Palle, E. ;

Sousa, S. ;

Lillo-Box, J. ;

Lovis, C. ;

Micela, G. ;

Oshagh, M. ;

Poretti, E. ;

Sozzetti, A. ;

Allende Prieto, C. ;

Alibert, Y. ;

Amate, M. ;

Benz, W. ;

Bouchy, F. ;

Cabral, A. ;

Dekker, H. ;

D'Odorico, V ;

Di Marcantonio, P. ;

Figueira, P. ;

Genova Santos, R. ;

Gonzalez Hernandez, J., I ;

Lo Curto, G. ;

Manescau, A. ;

Martins, C. J. A. P. ;

Megevand, D. ;

Mehner, A. ;

Molaro, P. ;

Nunes, N. J. ;

Riva, M. ;

Suarez Mascareno, A. ;

Udry, S. ;

Zerbi, F. .

ASTRONOMY & ASTROPHYSICS, 2021, 645

[8] The Mantis Network III. Expanding the limits of chemical searches within ultra-hot Jupiters: New detections of Ca I, V I, Ti I, Cr I, Ni I, Sr II, Ba II, and Tb II in KELT-9 b [J].

Borsato, N. W. ;

Hoeijmakers, H. J. ;

Prinoth, B. ;

Thorsbro, B. ;

Forsberg, R. ;

Kitzmann, D. ;

Jones, K. ;

Heng, K. .

ASTRONOMY & ASTROPHYSICS, 2023, 673

[9] Characterizing Exoplanetary Atmospheres at High Resolution with SPIRou: Detection of Water on HD 189733 b [J].

Boucher, Anne ;

Darveau-Bernier, Antoine ;

Pelletier, Stefan ;

Lafreniere, David ;

Artigau, Etienne ;

Cook, Neil J. ;

Allart, Romain ;

Radica, Michael ;

Doyon, Rene ;

Benneke, Bjorn ;

Arnold, Luc ;

Bonfils, Xavier ;

Bourrier, Vincent ;

Cloutier, Ryan ;

da Silva, Joao Gomes ;

Deibert, Emily ;

Delfosse, Xavier ;

Donati, Jean-Francois ;

Ehrenreich, David ;

Figueira, Pedro ;

Forveille, Thierry ;

Fouque, Pascal ;

Gagne, Jonathan ;

Gaidos, Eric ;

Hebrard, Guillaume ;

Jayawardhana, Ray ;

Klein, Baptiste ;

Lovis, Christophe ;

Martins, Jorge H. C. ;

Martioli, Eder ;

Moutou, Claire ;

Santos, Nuno C. .

ASTRONOMICAL JOURNAL, 2021, 162 (06)

[10] The signature of orbital motion from the dayside of the planet τ Bootis b [J].

Brogi, Matteo ;

Snellen, Ignas A. G. ;

de Kok, Remco J. ;

Albrecht, Simon ;

Birkby, Jayne ;

de Mooij, Ernst J. W. .

NATURE, 2012, 486 (7404) :502-504

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