MOND prediction of a new giant shell in the elliptical galaxy NGC 3923

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F14%3A00076851" target="_blank" >RIV/00216224:14310/14:00076851 - isvavai.cz</a>

Alternative codes found

RIV/67985815:_____/14:00434216

Result on the web

<a href="http://adsabs.harvard.edu/abs/2014A%26A...566A.151B" target="_blank" >http://adsabs.harvard.edu/abs/2014A%26A...566A.151B</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201423935" target="_blank" >10.1051/0004-6361/201423935</a>

Result language

angličtina

Original language name

MOND prediction of a new giant shell in the elliptical galaxy NGC 3923

Original language description

Context. Stellar shells, which form axially symmetric systems of arcs in some elliptical galaxies, are most likely remnants of radial minor mergers. They are observed up a radius of similar to 100 kpc. The stars in them oscillate in radial orbits. The radius of a shell depends on the free-fall time at the position of the shell and on the time since the merger. We previously verified the consistency of shell radii in the elliptical galaxy NGC 3923 with its most probable MOND potential. Our results implied that an as yet undiscovered shell exists at the outskirts of the galaxy. Aims. We here extend our study by assuming more general models for the gravitational potential to verify the prediction of the new shell and to estimate its position. Methods. Wetested the consistency of the shell radial distribution observed in NGC 3923 with a wide variety of MOND potentials of the galaxy. The potentials differed in the mass-to-light ratio and in distance to the galaxy.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

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

Name of the periodical

ASTRONOMY & ASTROPHYSICS

ISSN

0004-6361

e-ISSN

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Volume of the periodical

566

Issue of the periodical within the volume

JUNE

Country of publishing house

FR - FRANCE

Number of pages

11

Pages from-to

"nestránkováno"

UT code for WoS article

000338681500154

EID of the result in the Scopus database

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