Results 41 to 50 of about 53,340 (257)
Astronomische Nachrichten, Volume 343, Issue 3, March 2022., 2022 Abstract We revisited 10 known exoplanetary systems using publicly available data provided by the transiting exoplanet survey satellite (TESS). The sample presented in this work consists of short period transiting exoplanets, with inflated radii and large reported uncertainty on their planetary radii.
Xanthippi Alexoudi
wiley +1 more source
Triton Haze Analogs: The Role of Carbon Monoxide in Haze Formation
Journal of Geophysical Research: Planets, Volume 127, Issue 1, January 2022., 2022 Abstract Triton is the largest moon of the Neptune system and possesses a thin nitrogen atmosphere with trace amounts of carbon monoxide and methane, making it of similar composition to that of the dwarf planet Pluto. Like Pluto and Saturn's moon Titan, Triton has a haze layer thought to be composed of organics formed through photochemistry.
Sarah E. Moran +9 more
wiley +1 more source
A study of globular clusters in a lenticular galaxy in Hydra I from deep HST/ACS photometry [PDF]
Astronomy & Astrophysics, 2022 Aims. We take advantage of exquisitely deep optical imaging data from the Hubble Space Telescope’s Advanced Camera for Surveys (HST/ACS) in the F475W (gF475W) and F606W (VF606W) bands to study the properties of the globular cluster (GC) population in the intermediate-mass lenticular galaxy PGC 087327in the Hydra I galaxy cluster. Methods.
Nandini Hazra +6 more
openalex +3 more sources
A Reanalysis of the Isolated Black Hole Candidate OGLE-2011-BLG-0462/MOA-2011-BLG-191
The Astrophysical Journal, 2023 There are expected to be ∼10 ^8 isolated black holes (BHs) in the Milky Way. OGLE-2011-BLG-0462/MOA-2011-BLG-191 (OB110462) is the only such BH with a mass measurement to date. However, its mass is disputed: Lam et al.
Casey Y. Lam, Jessica R. Lu
doaj +1 more source
How do Spitzer IRAC Fluxes Compare to HST CALSPEC [PDF]
, 2022 An accurate tabulation of stellar brightness in physical units is essential for a multitude of scientific endeavors. The HST/CALSPEC database of flux standards contains many stars with spectral coverage in the 0.115--1 \micron\ range with some extensions to longer wavelengths of 1.7 or 2.5 \micron.
arxiv +1 more source
Gaia search for stellar companions of TESS Objects of Interest II
Astronomische Nachrichten, Volume 342, Issue 6, Page 840-864, July 2021., 2021 Abstract We present the latest results of our ongoing multiplicity study of (Community) TESS Objects of Interest, using astro‐ and photometric data from the ESA‐Gaia mission, to detect stellar companions of these stars and to characterize their properties.
Markus Mugrauer, Kai‐Uwe Michel
wiley +1 more source
Aerosols in Exoplanet Atmospheres
Journal of Geophysical Research: Planets, Volume 126, Issue 4, April 2021., 2021 Abstract Observations of exoplanet atmospheres have shown that aerosols, like in the solar system, are common across a variety of temperatures and planet types. The formation and distribution of these aerosols are inextricably intertwined with the composition and thermal structure of the atmosphere.
Peter Gao +3 more
wiley +1 more source
Candidate LBV stars in galaxy NGC 7793 found via HST photometry + MUSE spectroscopy [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Only about 19 Galactic and 25 extragalactic bonafide luminous blue variables (LBVs) are known to date. This incomplete census prevents our understanding of this crucial phase of massive star evolution which leads to the formation of heavy binary black holes via the classical channel.
Aida Wofford +23 more
openalex +5 more sources
The Dwarf Irregular Galaxy Sextans A. I. HST Photometry of the Resolved Stars [PDF]
The Astronomical Journal, 1997 R. C. Dohm‐Palmer +8 more
openalex +3 more sources
Hot Jupiters: Origins, Structure, Atmospheres
Journal of Geophysical Research: Planets, Volume 126, Issue 3, March 2021., 2021 Abstract We provide a brief review of many aspects of the planetary physics of hot Jupiters. Our aim is to cover most of the major areas of current study while providing the reader with additional references for more detailed follow‐up. We first discuss giant planet formation and subsequent orbital evolution via disk‐driven torques or dynamical ...
Jonathan J. Fortney +2 more
wiley +1 more source