Discovery and analysis of low-surface-brightness galaxies in the environment of NGC 1052
نویسندگان
چکیده
The environment of NGC1052 has recently attracted much attention because the presence low-surface-brightness galaxies (LSBGs) with apparently "exotic" properties, making it a region high interest for detection new objects. We used public deep photometric data from DECaLS to carry out comprehensive search LSBGs over wide 6x6 degrees, equivalent 2x2 Mpc at distance NGC1052. detected 42 r_e > 5 arcsec and mu_g(0) 24 mag/arcsec2, which 20 are previously undetected RCP32 stands extreme properties: = 23.0 mu_g_eff 28.6 one lowest surface brightness ever through integrated photometry, located just 10 arcmin extensively studied NGC1052-DF2. explored GCs in LSBGs. marginally GC system RCP32, argue that this LSBG is great follow-up observations given its extremely low baryon density. After analyzing distribution available spectroscopy, we identified large-scale structure approximately 1 well isolated redshift space centered on spatial correlation analysis between suggests their association. However, when exploring effective radius, find an overpopulation large (r_e 15 arcsec) close line sight suggestive substructure similar radial velocity projection, but closer distance, some these larger could be associated. However. possible effects derived tidal interactions worthy further study. Our work expands catalog interesting objects provides detailed environmental context study region.
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ژورنال
عنوان ژورنال: Astronomy and Astrophysics
سال: 2021
ISSN: ['0004-6361', '1432-0746']
DOI: https://doi.org/10.1051/0004-6361/202142161