Relationships between Stellar Velocity Dispersion and the
Atmospheres of Early-type Galaxies

J 2022

Relationships between Stellar Velocity Dispersion and the Atmospheres of Early-type Galaxies

FRISBIE, Rachel L. S, Megan DONAHUE, G. Mark VOIT, Kiran LAKHCHAURA, Norbert WERNER et. al.

Základní údaje

Originální název

Relationships between Stellar Velocity Dispersion and the Atmospheres of Early-type Galaxies

Autoři

FRISBIE, Rachel L. S, Megan DONAHUE, G. Mark VOIT, Kiran LAKHCHAURA, Norbert WERNER (703 Slovensko, domácí) a Ming SUN

Vydání

Astrophysical Journal, IOP Publishing Ltd, 2022, 0004-637X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL URL

Impakt faktor

Impact factor: 4.900

Kód RIV

RIV/00216224:14310/22:00119716

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.3847/1538-4357/ac4604

UT WoS

000759828200001

Klíčová slova anglicky

Giant elliptical galaxies; Galactic winds; AGN host galaxies; X-ray astronomy; Circumgalactic medium

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 10. 11. 2022 11:14, Mgr. Marie Šípková, DiS.

Anotace

V originále

The Voit et al. black hole feedback valve model predicts relationships between stellar velocity dispersion and atmospheric structure among massive early-type galaxies. In this work, we test that model using the Chandra archival sample of 49 early-type galaxies from Lakhchaura et al. We consider relationships between stellar velocity dispersion and entropy profile slope, multiphase gas extent, and the ratio of cooling time to freefall time. We also define subsamples based on data quality and entropy profile properties that clarify those relationships and enable more specific tests of the model predictions. We find that the atmospheric properties of early-type galaxies generally align with the predictions of the Voit et al. model, in that galaxies with a greater stellar velocity dispersion tend to have radial profiles of pressure, gas density, and entropy with steeper slopes and less extended multiphase gas. Quantitative agreement with the model predictions improves when the sample is restricted to have low central entropy and a stellar velocity dispersion of between 220 and 300 km s(-1).

Návaznosti

GX21-13491X, projekt VaV

Název: Zkoumání žhavého vesmíru a porozumění kosmické zpětné vazbě (Akronym: EHU)

Investor: Grantová agentura ČR, Exploring the Hot Universe and Understanding Comic Feedback

MUNI/I/0003/2020, interní kód MU

Název: MUNI Award in Science and Humanities 3 (Akronym: Space-Based High-Energy Astrophysics)

Investor: Masarykova univerzita, MUNI Award in Science and Humanities 3, MASH - MUNI Award in Science and Humanities

Citovat

FRISBIE, Rachel L. S, Megan DONAHUE, G. Mark VOIT, Kiran LAKHCHAURA, Norbert WERNER a Ming SUN. Relationships between Stellar Velocity Dispersion and the Atmospheres of Early-type Galaxies. Astrophysical Journal. IOP Publishing Ltd, 2022, roč. 926, č. 2, s. 1-12. ISSN 0004-637X. Dostupné z: https://dx.doi.org/10.3847/1538-4357/ac4604.

@article{1842478,
   author = {Frisbie, Rachel L. S and Donahue, Megan and Voit, G. Mark and Lakhchaura, Kiran and Werner, Norbert and Sun, Ming},
   article_number = {2},
   doi = {http://dx.doi.org/10.3847/1538-4357/ac4604},
   keywords = {Giant elliptical galaxies; Galactic winds; AGN host galaxies; X-ray astronomy; Circumgalactic medium},
   language = {eng},
   issn = {0004-637X},
   journal = {Astrophysical Journal},
   title = {Relationships between Stellar Velocity Dispersion and the Atmospheres of Early-type Galaxies},
   url = {https://iopscience.iop.org/article/10.3847/1538-4357/ac4604},
   volume = {926},
   year = {2022}
}

TY  - JOUR
ID  - 1842478
AU  - Frisbie, Rachel L. S - Donahue, Megan - Voit, G. Mark - Lakhchaura, Kiran - Werner, Norbert - Sun, Ming
PY  - 2022
TI  - Relationships between Stellar Velocity Dispersion and the Atmospheres of Early-type Galaxies
JF  - Astrophysical Journal
VL  - 926
IS  - 2
SP  - 1-12
EP  - 1-12
PB  - IOP Publishing Ltd
SN  - 0004637X
KW  - Giant elliptical galaxies
KW  - Galactic winds
KW  - AGN host galaxies
KW  - X-ray astronomy
KW  - Circumgalactic medium
UR  - https://iopscience.iop.org/article/10.3847/1538-4357/ac4604
N2  - The Voit et al. black hole feedback valve model predicts relationships between stellar velocity dispersion and atmospheric structure among massive early-type galaxies. In this work, we test that model using the Chandra archival sample of 49 early-type galaxies from Lakhchaura et al. We consider relationships between stellar velocity dispersion and entropy profile slope, multiphase gas extent, and the ratio of cooling time to freefall time. We also define subsamples based on data quality and entropy profile properties that clarify those relationships and enable more specific tests of the model predictions. We find that the atmospheric properties of early-type galaxies generally align with the predictions of the Voit et al. model, in that galaxies with a greater stellar velocity dispersion tend to have radial profiles of pressure, gas density, and entropy with steeper slopes and less extended multiphase gas. Quantitative agreement with the model predictions improves when the sample is restricted to have low central entropy and a stellar velocity dispersion of between 220 and 300 km s(-1).
ER  -

FRISBIE, Rachel L. S, Megan DONAHUE, G. Mark VOIT, Kiran LAKHCHAURA, Norbert WERNER a Ming SUN. Relationships between Stellar Velocity Dispersion and the Atmospheres of Early-type Galaxies. \textit{Astrophysical Journal}. IOP Publishing Ltd, 2022, roč.~926, č.~2, s.~1-12. ISSN~0004-637X. Dostupné z: https://dx.doi.org/10.3847/1538-4357/ac4604.

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