Faint and Fading Tails: The Fate of Stripped H i Gas in Virgo Cluster Galaxies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00536882" target="_blank" >RIV/67985815:_____/20:00536882 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3847/1538-3881/ab6988" target="_blank" >https://doi.org/10.3847/1538-3881/ab6988</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/1538-3881/ab6988" target="_blank" >10.3847/1538-3881/ab6988</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Faint and Fading Tails: The Fate of Stripped H i Gas in Virgo Cluster Galaxies

Popis výsledku v původním jazyce

We construct a simple model to try and quantify how many streams we might expect to detect. This accounts for the expected random orientation of the streams in position and velocity space as well as the expected stream length and mass of stripped H i. Using archival data from the Arecibo Galaxy Environment Survey, we search for any streams that might previously have been missed in earlier analyses. We report the confident detection of 10 streams as well as 16 other less-certain detections. We show that these well match our analytic predictions for which galaxies should be actively losing gas. However, the mass of the streams is typically far below the amount of missing H i in their parent galaxies, implying that a phase change and/or dispersal renders the gas undetectable. By estimating the orbital timescales, we estimate that dissolution rates of 1-10 M-circle dot yr(-1) are able to explain both the presence of a few long, massive streams and the greater number of shorter, less-massive features.

Název v anglickém jazyce

Faint and Fading Tails: The Fate of Stripped H i Gas in Virgo Cluster Galaxies

Popis výsledku anglicky

We construct a simple model to try and quantify how many streams we might expect to detect. This accounts for the expected random orientation of the streams in position and velocity space as well as the expected stream length and mass of stripped H i. Using archival data from the Arecibo Galaxy Environment Survey, we search for any streams that might previously have been missed in earlier analyses. We report the confident detection of 10 streams as well as 16 other less-certain detections. We show that these well match our analytic predictions for which galaxies should be actively losing gas. However, the mass of the streams is typically far below the amount of missing H i in their parent galaxies, implying that a phase change and/or dispersal renders the gas undetectable. By estimating the orbital timescales, we estimate that dissolution rates of 1-10 M-circle dot yr(-1) are able to explain both the presence of a few long, massive streams and the greater number of shorter, less-massive features.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Astronomical Journal

ISSN

1538-3881

e-ISSN

—

Svazek periodika

159

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

218

Kód UT WoS článku

000528975800001

EID výsledku v databázi Scopus

2-s2.0-85088236556