MOND implications for spectral line profiles of shell galaxies: shell formation history and mass-velocity scaling relations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F15%3A00445128" target="_blank" >RIV/67985815:_____/15:00445128 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/15:00093054

Výsledek na webu

<a href="http://dx.doi.org/10.1051/0004-6361/201424831" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201424831</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201424831" target="_blank" >10.1051/0004-6361/201424831</a>

Jazyk výsledku

angličtina

Název v původním jazyce

MOND implications for spectral line profiles of shell galaxies: shell formation history and mass-velocity scaling relations

Popis výsledku v původním jazyce

We study how the circular and expansion velocities behave in MOND for large shells. Circular velocity settles asymptotically at a value determined by the baryonic mass of the galaxy forming the baryonic Tully-Fisher relation known for disk galaxies. Shell expansion velocity also becomes asymptotically constant. The expansion velocities of large shells form a multibranched analogy to the baryonic Tully-Fisher relation, together with the galactic baryonic masses. For many - but not all - shell galaxies, the asymptotic values of these two types of velocities are reached under the effective radius. If MOND is assumed to work in ellipticals, then the shell spectra allow many details of the history to be revealed about the formation of the shell system, including its age. The results pertaining to circular velocities apply to all elliptical galaxies, not only those with shells.

Název v anglickém jazyce

MOND implications for spectral line profiles of shell galaxies: shell formation history and mass-velocity scaling relations

Popis výsledku anglicky

We study how the circular and expansion velocities behave in MOND for large shells. Circular velocity settles asymptotically at a value determined by the baryonic mass of the galaxy forming the baryonic Tully-Fisher relation known for disk galaxies. Shell expansion velocity also becomes asymptotically constant. The expansion velocities of large shells form a multibranched analogy to the baryonic Tully-Fisher relation, together with the galactic baryonic masses. For many - but not all - shell galaxies, the asymptotic values of these two types of velocities are reached under the effective radius. If MOND is assumed to work in ellipticals, then the shell spectra allow many details of the history to be revealed about the formation of the shell system, including its age. The results pertaining to circular velocities apply to all elliptical galaxies, not only those with shells.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Astronomy & Astrophysics

ISSN

1432-0746

e-ISSN

—

Svazek periodika

575

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

8

Strana od-do

"A29/1"-"A29/8"

Kód UT WoS článku

000350249100029

EID výsledku v databázi Scopus

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