The Arecibo Galaxy Environment Survey - VIII. Discovery of an isolated dwarf galaxy in the Local Volume

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F14%3A00481942" target="_blank" >RIV/67985815:_____/14:00481942 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1093/mnrasl/slu054" target="_blank" >http://dx.doi.org/10.1093/mnrasl/slu054</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/mnrasl/slu054" target="_blank" >10.1093/mnrasl/slu054</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Arecibo Galaxy Environment Survey - VIII. Discovery of an isolated dwarf galaxy in the Local Volume

Popis výsledku v původním jazyce

The Arecibo Galaxy Environment Survey has detected a nearby HI source at a heliocentric velocity of + 363 km s(-1). The object was detected through its neutral hydrogen emission and has an obvious possible optical counterpart in Sloan Digital Sky Survey data (though it does not have an optical redshift measurement). We discuss three possible scenarios for the object: (1) it is within the Local Group, in which case its HI properties are comparable with recently discovered ultracompact high-velocity clouds. (2) it is just behind the Local Group, in which case its optical characteristics are similar to the newly discovered Leo P galaxy. (3) it is a blue compact dwarf galaxy within the local volume but not associated with the Local Group. We find the third possibility to be the most likely, based on distance estimates from the Tully-Fisher relation and its velocity relative to the Local Group.

Název v anglickém jazyce

The Arecibo Galaxy Environment Survey - VIII. Discovery of an isolated dwarf galaxy in the Local Volume

Popis výsledku anglicky

The Arecibo Galaxy Environment Survey has detected a nearby HI source at a heliocentric velocity of + 363 km s(-1). The object was detected through its neutral hydrogen emission and has an obvious possible optical counterpart in Sloan Digital Sky Survey data (though it does not have an optical redshift measurement). We discuss three possible scenarios for the object: (1) it is within the Local Group, in which case its HI properties are comparable with recently discovered ultracompact high-velocity clouds. (2) it is just behind the Local Group, in which case its optical characteristics are similar to the newly discovered Leo P galaxy. (3) it is a blue compact dwarf galaxy within the local volume but not associated with the Local Group. We find the third possibility to be the most likely, based on distance estimates from the Tully-Fisher relation and its velocity relative to the Local Group.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

e-ISSN

—

Svazek periodika

442

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

"L46"-"L50"

Kód UT WoS článku

000348045200011

EID výsledku v databázi Scopus

2-s2.0-84902353751