Zobrazeno 1 - 10
of 168
pro vyhledávání: '"David K. Sing"'
Autor:
Ryan C. Challener, Zafar Rustamkulov, Elspeth K. H. Lee, Nikole Lewis, David K. Sing, Stephan M. Birkmann, Nicolas Crouzet, Néstor Espinoza, Elena Manjavacas, Natalia Oliveros-Gomez, Jeff A. Valenti, Jingxuan Yang
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 2, p L32 (2024)
We present two-dimensional near-infrared temperature maps of the canonical hot Jupiter WASP-43b using a phase-curve observation with JWST NIRSpec/G395H. From the white-light planetary transit, we improve constraints on the planet’s orbital paramete
Externí odkaz:
https://doaj.org/article/96ea0abfd7ca4f12919450621467d325
Autor:
Natalie H. Allen, David K. Sing, Néstor Espinoza, Richard O’Steen, Nikolay K. Nikolov, Zafar Rustamkulov, Thomas M. Evans-Soma, Lakeisha M. Ramos Rosado, Munazza K. Alam, Mercedes López-Morales, Kevin B. Stevenson, Hannah R. Wakeford, Erin M. May, Rafael Brahm, Marcelo Tala Pinto
Publikováno v:
The Astronomical Journal, Vol 168, Iss 3, p 111 (2024)
The Hubble Space Telescope (HST) has been our most prolific tool to study exoplanet atmospheres. As the age of JWST begins, there are a wealth of HST archival data that are useful to strengthen our inferences from JWST. Notably, HST/Space Telescope I
Externí odkaz:
https://doaj.org/article/1cd21cc109cb49fdab75c935b2410e6a
Autor:
James Kirk, Kevin B. Stevenson, Guangwei Fu, Jacob Lustig-Yaeger, Sarah E. Moran, Sarah Peacock, Munazza K. Alam, Natasha E. Batalha, Katherine A. Bennett, Junellie Gonzalez-Quiles, Mercedes López-Morales, Joshua D. Lothringer, Ryan J. MacDonald, E. M. May, L. C. Mayorga, Zafar Rustamkulov, David K. Sing, Kristin S. Sotzen, Jeff A. Valenti, Hannah R. Wakeford
Publikováno v:
The Astronomical Journal, Vol 167, Iss 3, p 90 (2024)
We present a JWST/Near Infrared Camera (NIRCam) transmission spectrum from 3.9 to 5.0 μ m of the recently validated sub-Earth GJ 341b ( R _P = 0.92 R _⊕ , T _eq = 540 K) orbiting a nearby bright M1 star ( d = 10.4 pc, K _mag = 5.6). We use three i
Externí odkaz:
https://doaj.org/article/fbffdda7f9df47f9b72b64ef7338d05b
Autor:
Henrique Reggiani, Jhon Yana Galarza, Kevin C. Schlaufman, David K. Sing, Brian F. Healy, Andrew McWilliam, Joshua D. Lothringer, Laurent Pueyo
Publikováno v:
The Astronomical Journal, Vol 167, Iss 1, p 45 (2024)
It has been suggested that β Pic b has a supersolar metallicity and subsolar C/O ratio. Assuming solar carbon and oxygen abundances for the star β Pic and therefore the planet’s parent protoplanetary disk, β Pic b’s C/O ratio suggests that it
Externí odkaz:
https://doaj.org/article/8c3c11bbe3464b60b7822f0a76232858
Autor:
E. M. May, Ryan J. MacDonald, Katherine A. Bennett, Sarah E. Moran, Hannah R. Wakeford, Sarah Peacock, Jacob Lustig-Yaeger, Alicia N. Highland, Kevin B. Stevenson, David K. Sing, L. C. Mayorga, Natasha E. Batalha, James Kirk, Mercedes López-Morales, Jeff A. Valenti, Munazza K. Alam, Lili Alderson, Guangwei Fu, Junellie Gonzalez-Quiles, Joshua D. Lothringer, Zafar Rustamkulov, Kristin S. Sotzen
Publikováno v:
The Astrophysical Journal Letters, Vol 959, Iss 1, p L9 (2023)
The search for rocky planet atmospheres with JWST has focused on planets transiting M dwarfs. Such planets have favorable planet-to-star size ratios, enhancing the amplitude of atmospheric features. Since the expected signal strength of atmospheric f
Externí odkaz:
https://doaj.org/article/5077981a011d4faabdef09f800e11f1e
Autor:
Sarah E. Moran, Kevin B. Stevenson, David K. Sing, Ryan J. MacDonald, James Kirk, Jacob Lustig-Yaeger, Sarah Peacock, L. C. Mayorga, Katherine A. Bennett, Mercedes López-Morales, E. M. May, Zafar Rustamkulov, Jeff A. Valenti, Jéa I. Adams Redai, Munazza K. Alam, Natasha E. Batalha, Guangwei Fu, Junellie Gonzalez-Quiles, Alicia N. Highland, Ethan Kruse, Joshua D. Lothringer, Kevin N. Ortiz Ceballos, Kristin S. Sotzen, Hannah R. Wakeford
Publikováno v:
The Astrophysical Journal Letters, Vol 948, Iss 1, p L11 (2023)
Planets orbiting M-dwarf stars are prime targets in the search for rocky exoplanet atmospheres. The small size of M dwarfs renders their planets exceptional targets for transmission spectroscopy, facilitating atmospheric characterization. However, it
Externí odkaz:
https://doaj.org/article/f89e7522577a48c5b9d42c9e72ef84e8
Autor:
Thomas Mikal-Evans, David K. Sing, Jiayin Dong, Daniel Foreman-Mackey, Tiffany Kataria, Joanna K. Barstow, Jayesh M. Goyal, Nikole K. Lewis, Joshua D. Lothringer, Nathan J. Mayne, Hannah R. Wakeford, Duncan A. Christie, Zafar Rustamkulov
Publikováno v:
The Astrophysical Journal Letters, Vol 943, Iss 2, p L17 (2023)
We present the first exoplanet phase-curve measurement made with the JWST NIRSpec instrument, highlighting the exceptional stability of this newly commissioned observatory for exoplanet climate studies. The target, WASP-121b, is an ultrahot Jupiter w
Externí odkaz:
https://doaj.org/article/489301fc88c3434aa4a56c52d517dfde
Autor:
Leonardo A. Dos Santos, Antonio García Muñoz, David K. Sing, Mercedes López-Morales, Munazza K. Alam, Vincent Bourrier, David Ehrenreich, Gregory W. Henry, Alain Lecavelier des Etangs, Thomas Mikal-Evans, Nikolay K. Nikolov, Jorge Sanz-Forcada, Hannah R. Wakeford
Publikováno v:
The Astronomical Journal, Vol 166, Iss 3, p 89 (2023)
One of the most well-studied exoplanets to date, HD 189733 b, stands out as an archetypal hot Jupiter with many observations and theoretical models aimed at characterizing its atmosphere, interior, host star, and environment. We report here on the re
Externí odkaz:
https://doaj.org/article/0df17d6090bc49ed9c1899a2214cdf0b
Autor:
Alexander D Rathcke, Lars A Buchhave, João M Mendonça, David K Sing, Mercedes López-Morales, Munazza K Alam, Gregory W Henry, Nikolay K Nikolov, A García Muñoz, Thomas Mikal-Evans, Hannah R Wakeford, Leonardo A Dos Santos, Vinesh Maguire Rajpaul
Publikováno v:
Rathcke, A D, Buchhave, L A, Mendonça, J M, Sing, D K, López-Morales, M, Alam, M K, Henry, G W, Nikolov, N K, Muñoz, A G, Mikal-Evans, T, Wakeford, H R, Dos Santos, L A & Rajpaul, V M 2023, ' HST PanCET programme : a flat optical transmission spectrum for the Hot Jupiter WASP-101b ', Monthly Notices of the Royal Astronomical Society, vol. 522, no. 1, pp. 582-594 . https://doi.org/10.1093/mnras/stad1010
We present an optical transmission spectrum of the hot Jupiter WASP-101b. We observed three primary transits with Hubble Space Telescope (HST)/Space Telescope Imaging Spectrograph, covering a wavelength range from 0.3 to 1 $\mu$m. The observations su
Autor:
Nikolay K Nikolov, David K Sing, Jessica J Spake, Barry Smalley, Jayesh M Goyal, Thomas Mikal-Evans, Hannah R Wakeford, Zafar Rustamkulov, Drake Deming, Jonathan J Fortney, Aarynn Carter, Neale P Gibson, Nathan J Mayne
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 515:3037-3058
We present new analysis of infrared transmission spectroscopy of the cloud-free hot-Saturn WASP-96b performed with the Hubble and Spitzer Space Telescopes (HST and Spitzer). The WASP-96b spectrum exhibits the absorption feature from water in excellen