Počet záznamů: 1
The Arecibo Galaxy Environment Survey IX: the isolated galaxy sample
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SYSNO ASEP 0471863 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The Arecibo Galaxy Environment Survey IX: the isolated galaxy sample Tvůrce(i) Minchin, R.F. (US)
Auld, R. (GB)
Davies, J.I. (GB)
Karachentsev, I.D. (RU)
Keenan, O. (GB)
Momjian, E. (US)
Rodriguez, R. (US)
Taber, T. (US)
Taylor, Rhys (ASU-R) ORCIDZdroj.dok. Monthly Notices of the Royal Astronomical Society. - : Oxford University Press - ISSN 0035-8711
Roč. 455, č. 4 (2016), s. 3430-3435Poč.str. 6 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova individual galaxies NGC 1156 ; individual galaxies NGC 5523 ; individual galaxies UGC 2082 Vědní obor RIV BN - Astronomie a nebeská mechanika, astrofyzika CEP LG14013 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GAP209/12/1795 GA ČR - Grantová agentura ČR Institucionální podpora ASU-R - RVO:67985815 UT WOS 000368009300003 EID SCOPUS 84959131900 DOI 10.1093/mnras/stv2557 Anotace We have used the Arecibo L-band Feed Array (ALFA) to map three regions, each of 5 deg(2), around the isolated galaxies NGC 1156, UGC 2082, and NGC 5523. In the vicinity of these galaxies we have detected two dwarf companions: one near UGC 2082, previously discovered by the Arecibo Legacy Fast ALFA (ALFALFA) survey, and one near NGC 1156, discovered by this project and reported in an earlier paper. This is significantly fewer than the 15.4(-1.5)(+1.7) that would be expected from the field HI mass function from ALFALFA or the 8.9 +/- 1.2 expected if the H I mass function from the Local Group applied in these regions. The number of dwarf companions detected is, however, consistent with a flat or declining H I mass function as seen by a previous, shallower, H I search for companions to isolated galaxies. We attribute this difference in H I mass functions to the different environments in which they are measured. This agrees with the general observation that lower ratios of dwarf to giant galaxies are found in lower density environments. Pracoviště Astronomický ústav Kontakt Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Rok sběru 2017
Počet záznamů: 1