Search Publications
Missions
Journals
Publication Years
TOI-4010: A System of Three Large Short-period Planets with a Massive Long-period Companion
Vanderburg, Andrew; López-Morales, Mercedes; Bieryla, Allyson +53 more
We report the confirmation of three exoplanets transiting TOI-4010 (TIC-352682207), a metal-rich K dwarf observed by the Transiting Exoplanet Survey Satellite in Sectors 24, 25, 52, and 58. We confirm these planets with the High Accuracy Radial velocity Planet Searcher for the Northern Hemisphere radial velocity observations and measure their mass…
Hydrodynamic Atmospheric Escape in HD 189733 b: Signatures of Carbon and Hydrogen Measured with the Hubble Space Telescope
Mikal-Evans, Thomas; Sing, David K.; López-Morales, Mercedes +10 more
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 results of an extensive campaign to observe atmospheric escape signatures in HD 189733 b using the Hu…
Robust clustering of the local Milky Way stellar kinematic substructures with Gaia eDR3
Frebel, Anna; Necib, Lina; Ou, Xiaowei
Understanding local stellar kinematic substructures in the solar neighbourhood helps build a complete picture of the formation of the Milky Way, as well as an empirical phase space distribution of dark matter that would inform detection experiments. We apply the clustering algorithm HDBSCAN on the Gaia early third data release to identify a list o…
A Reexamination of Phosphorus and Chlorine Depletions in the Diffuse Interstellar Medium
Ritchey, Adam M.; Federman, S. R.; Brown, J. M. +1 more
We present a comprehensive examination of interstellar P and Cl abundances based on an analysis of archival spectra acquired with the Space Telescope Imaging Spectrograph of the Hubble Space Telescope and the Far Ultraviolet Spectroscopic Explorer. Column densities of P II, Cl I, and Cl II are determined for a combined sample of 107 sight lines pr…
Asteroids seen by JWST-MIRI: Radiometric size, distance, and orbit constraints
Müller, T. G.; Micheli, M.; Bartczak, P. +3 more
Infrared measurements of asteroids are crucial for the determination of physical and thermal properties of individual objects, and for understanding the small-body populations in the solar system as a whole. However, standard radiometric methods can only be applied if the orbit of an object is known, hence its position at the time of the observati…
Refining the properties of the TOI-178 system with CHEOPS and TESS
Alonso, R.; Deleuil, M.; Erikson, A. +84 more
Context. The TOI-178 system consists of a nearby late K-dwarf transited by six planets in the super-Earth to mini-Neptune regime, with radii ranging from ~1.1 to 2.9 R⊕ and orbital periods between 1.9 and 20.7 days. All planets but the innermost one form a chain of Laplace resonances. Mass estimates derived from a preliminary radial vel…
Planetary nebulae and supernova remnants in NGC 4214 from the SIGNALS survey
Vicens-Mouret, Sébastien; Drissen, Laurent; Robert, Carmelle +3 more
Using datacubes from the imaging Fourier transform spectrometer SITELLE at the Canada-France-Hawaii Telescope as part of the star formation, ionized gas, and nebular abundances legacy survey, we identify 15 new planetary nebulae (PNe) as well as five new supernova remnants (SNRs) in the outer parts of the nearby dwarf starburst galaxy NGC 4214. Th…
An XMM-Newton study of six narrow-line Seyfert 1 galaxies at z = 0.35-0.92
Fabian, Andrew C.; Brandt, William N.; Reynolds, Christopher S. +5 more
We report a detailed analysis of the XMM-Newton spectra of six narrow-line Seyfert 1 (NLS1) galaxies at redshift z = 0.35-0.92. Compared with the NLS1s at lower redshift in the previously most-studied sample, these NLS1s have larger black hole (BH) masses ($\log \, M_\mathrm{BH}\gt 7.5$ ) with similar or even lower Eddington ratios. Our extended X…
The multiplicity of massive stars in the Scorpius OB1 association through high-contrast imaging
Pauwels, T.; Sana, H.; Reggiani, M. +2 more
Context. Despite past efforts, a comprehensive theory of massive star formation is still lacking. One of the most remarkable properties of massive stars is that almost all of them are found in binaries or higher-order multiple systems. Since multiplicity is an important outcome parameter of a star formation process, observations that cover the ful…
Retrospective Search for Strongly Lensed Supernovae in the DESI Legacy Imaging Surveys
Schlegel, David J.; Huang, Xiaosheng; Suzuki, Nao +3 more
The introduction of deep wide-field surveys in recent years and the adoption of machine-learning techniques have led to the discoveries of ${ \mathcal O }({10}^{4})$ strong gravitational lensing systems and candidates. However, the discovery of multiply-lensed transients remains a rarity. Lensed transients and especially lensed supernovae are inva…