Results 41 to 50 of about 30,917 (231)

Triton Haze Analogs: The Role of Carbon Monoxide in Haze Formation

open access: yesJournal 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

Gaia search for stellar companions of TESS Objects of Interest II

open access: yesAstronomische 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

HFF-DeepSpace photometric catalogs of the 12 Hubble frontier fields, clusters, and parallels : photometry, photometric redshifts, and stellar masses [PDF]

open access: yes, 2018
We present Hubble multi-wavelength photometric catalogs, including (up to) 17 filters with the Advanced Camera for Surveys and Wide Field Camera 3 from the ultra-violet to near-infrared for the Hubble Frontier Fields and associated parallels.
Brammer, Gabriel B   +16 more
core   +4 more sources

The Dwarf Irregular Galaxy Sextans A. I. HST Photometry of the Resolved Stars [PDF]

open access: greenThe Astronomical Journal, 1997
R. C. Dohm‐Palmer   +8 more
openalex   +3 more sources

Cloud Atlas: High-Contrast Time-Resolved Observations of Planetary-Mass Companions [PDF]

open access: yes, 2019
Directly-imaged planetary-mass companions offer unique opportunities in atmospheric studies of exoplanets. They share characteristics of both brown dwarfs and transiting exoplanets, therefore, are critical for connecting atmospheric characterizations for
Apai, Dániel   +13 more
core   +4 more sources

Uncloaking globular clusters in the inner Galaxy [PDF]

open access: yes, 2011
Extensive photometric studies of the globular clusters located towards the center of the Milky Way have been historically neglected. The presence of patchy differential reddening in front of these clusters has proven to be a significant obstacle to their
Alonso-García, Javier   +6 more
core   +2 more sources

A Photometric Survey of Globular Cluster Systems in Brightest Cluster Galaxies

open access: yesThe Astrophysical Journal Supplement Series, 2023
Hubble Space Telescope imaging for 26 giant early-type galaxies, all drawn from the MAST archive, is used to carry out photometry of their surrounding globular cluster (GC) systems. Most of these targets are Brightest Cluster Galaxies and their distances
William E. Harris
doaj   +1 more source

The extended structure of the dwarf irregular galaxy Sagittarius [PDF]

open access: yes, 2014
We present a detailed study of the stellar and HI structure of the dwarf irregular galaxy Sagittarius. We use new deep and wide field photometry to trace the surface brightness profile of the galaxy out to ~5.0' (corresponding to ~1600 pc) and down to ...
Battaglia, G.   +8 more
core   +3 more sources

The Progenitor of Supernova 2011dh Has Vanished [PDF]

open access: yes, 2013
We conducted Hubble Space Telescope (HST) Snapshot observations of the Type IIb Supernova (SN) 2011dh in M51 at an age of ~641 days with the Wide Field Camera 3.
Cenko, S. Bradley   +9 more
core   +2 more sources

Metallicity Distribution Functions of 13 Ultra-faint Dwarf Galaxy Candidates from Hubble Space Telescope Narrowband Imaging

open access: yesThe Astrophysical Journal, 2023
We present uniformly measured stellar metallicities of 463 stars in 13 Milky Way (MW) ultra-faint dwarf galaxies (UFDs; M _V = −7.1 to −0.8) using narrowband CaHK (F395N) imaging taken with the Hubble Space Telescope.
Sal Wanying Fu   +12 more
doaj   +1 more source

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