Výsledky vyhledávání - "Celestial Objects"

Akademický článek

Publikováno v: HTS Teologiese Studies/Theological Studies, Vol 80, Iss 2, Pp e1-e8 (2024)

The assumption among Europeans that the Khoikhoi indigenous people of southern Africa had little to no religious beliefs is evident throughout historical documents. However, if the Khoikhoi were regarded as having any religious beliefs, it was assume

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Akademický článek

Hot Stars in the GALEX Ultraviolet Sky Surveys (GUVcat_AISxSDSS_HS) and the Binary Fraction of Hot Evolved Stars

Autor: Luciana Bianchi

Publikováno v: The Astrophysical Journal Supplement Series, Vol 274, Iss 2, p 45 (2024)

We present a catalog of 71,364 pointlike UV sources with Sloan Digital Sky Survey (SDSS) photometry and GALEX far-UV (FUV)−near-UV (NUV) ≤0.1 mag. The limit corresponds to stellar T _eff ≳15,000−20,000 K, slightly depending on gravity but nea

Externí odkaz: https://doaj.org/article/7799ad2110f14dcfa5970434a00f1078

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Akademický článek

Detection of Faint Sources by the UltraViolet Imaging Telescope Onboard AstroSat Using Poisson Distribution of Background

Autor: B. Ananthamoorthy, Debbijoy Bhattacharya, P. Sreekumar, Swathi B

Publikováno v: The Astronomical Journal, Vol 168, Iss 1, p 22 (2024)

We present an improved approach for constructing the UV source catalogs using observations from the UltraViolet Imaging Telescope (UVIT) onboard AstroSat, by considering the Poisson distribution of the UV background. The method is tested extensively

Externí odkaz: https://doaj.org/article/d46db70383a34934946b9d3587109dad

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Akademický článek

SMC-Last Extracted Photometry

Autor: T. A. Kuchar, G. C. Sloan, D. R. Mizuno, Kathleen E. Kraemer, M. L. Boyer, Martin A. T. Groenewegen, O. C. Jones, F. Kemper, Iain McDonald, Joana M. Oliveira, Marta Sewiło, Sundar Srinivasan, Jacco Th. van Loon, Albert Zijlstra

Publikováno v: The Astronomical Journal, Vol 167, Iss 4, p 149 (2024)

We present point-source photometry from the Spitzer Space Telescope's final survey of the Small Magellanic Cloud (SMC). We mapped nearly 30 deg ^2 in two epochs in 2017, with the second extending to early 2018 at 3.6 and 4.5 μ m using the Infrared A

Externí odkaz: https://doaj.org/article/733b108d8c474263aca0dfd34c39b401

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Akademický článek

Siena Galaxy Atlas 2020

Autor: John Moustakas, Dustin Lang, Arjun Dey, Stéphanie Juneau, Aaron Meisner, Adam D. Myers, Edward F. Schlafly, David J. Schlegel, Francisco Valdes, Benjamin A. Weaver, Rongpu Zhou

Publikováno v: The Astrophysical Journal Supplement Series, Vol 269, Iss 1, p 3 (2023)

We present the 2020 version of the Siena Galaxy Atlas (SGA-2020), a multiwavelength optical and infrared imaging atlas of 383,620 nearby galaxies. The SGA-2020 uses optical grz imaging over ≈20,000 deg ^2 from the Dark Energy Spectroscopic Instrume

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