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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28573
Title: An ultra diffuse galaxy in the NGC 5846 group from the VEGAS survey
Authors: Forbes, Duncan A.
Gannon, Jonah
Couch, Warrick J.
IODICE, ENRICHETTA 
SPAVONE, MARILENA 
CANTIELLO, Michele 
NAPOLITANO, NICOLA ROSARIO 
SCHIPANI, Pietro 
Issue Date: 2019
Journal: ASTRONOMY & ASTROPHYSICS 
Number: 626
First Page: A66
Abstract: Context. Many ultra diffuse galaxies (UDGs) have now been identified in clusters of galaxies. However, the number of nearby UDGs suitable for detailed follow-up remain rare. <BR /> Aims: Our aim is to begin to identify UDGs in the environments of nearby bright early-type galaxies from the VEGAS survey. <BR /> Methods: Here we use a deep g band image of the NGC 5846 group, taken as part of the VEGAS survey, to search for UDGs. <BR /> Results: We found one object with properties of a UDG if it associated with the NGC 5846 group, which seems likely. The galaxy, we name NGC 5846_UDG1, has an absolute magnitude of M<SUB>g</SUB> = -14.2, corresponding to a stellar mass of ∼10<SUP>8</SUP>M<SUB>☉</SUB>. It also reveals a system of compact sources which are likely globular clusters. Based on the number of globular clusters detected we estimate a halo mass that is greater than 8 × 10<SUP>10</SUP>M<SUB>☉</SUB> for UDG1.
URI: http://hdl.handle.net/20.500.12386/28573
URL: https://www.aanda.org/articles/aa/abs/2019/06/aa35499-19/aa35499-19.html
ISSN: 0004-6361
DOI: 10.1051/0004-6361/201935499
Bibcode ADS: 2019A&A...626A..66F
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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