| UGC 934 | |
|---|---|
 Hubble image of UGC 934. | |
| Observation data (J2000 epoch) | |
| Constellation | Pisces |
| Right ascension | 01h 23m 28.3s |
| Declination | +30° 47′ 04.1″ |
| Redshift | 0.034927 |
| Heliocentric radial velocity | 10,471 km/s |
| Distance | 469 Mly (143.8 Mpc) |
| Group or cluster | Abell 1960 |
| Apparent magnitude (V) | 0.14 |
| Apparent magnitude (B) | 0.19 |
| Characteristics | |
| Type | S? |
| Size | 285,000 ly |
| Apparent size (V) | 1.7' x 0.6' |
| Other designations | |
| LEDA 5085, VV 341a, MCG +05-04-042, NSA 129346, 2MASX J012328.30+304703.9 | |
UGC 934, known as PGC 5085, is a large spiral galaxy about 470 million light-years away from the solar system.[1] It is located in the constellation of Pisces and about 285,000 thousand light-years in diameter.[1][2]
With its neighboring galaxy PGC 212740, they together form the galaxy pair, VV 341.[3] They are also known as Arp 70, the 70th number in the Atlas of Peculiar Galaxies, created by Halton Arp.[4] In this class, they fall under spiral galaxies that have a small high-surface brightness companions.
According to Laurikainen, Salo & Aparicio, UGC 934 and the neighboring galaxy are examples of M51- type galaxies, i.e. a system where a large galaxy with two spiral arms is seen interacting with a smaller companion.[5] It is likely the interaction with PGC 212740 would result UGC 934 having grand design spiral arms.[6]
The SIMBAD database and by Lacerda et al. (2020) classifies UGC 934 as a Seyfert type 2 galaxy with an active galactic nucleus.[7][8]
A giant H II region in the galaxy has been discovered in one of its spiral arms. It has a luminosity of (7.5 ± 0.5) x 1040 ergs-1. Additionally, the rate of star formation in UGC 934 is 0.59 ± 0.04 M⊙ yr-1.[6]
- ^ a b "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-04-19.
- ^ "Principal Galaxy Catalog (PGC) Objects 5000 to 5499". cseligman.com. Retrieved 2024-04-19.
- ^ Rampazzo, R.; Plana, H.; Amram, P.; Bagarotto, S.; Boulesteix, J.; Rosado, M. (January 2005). "Two-dimensional warm gas kinematics in interacting galaxy systems". Monthly Notices of the Royal Astronomical Society. 356 (3): 1177–1190. Bibcode:2005MNRAS.356.1177R. doi:10.1111/j.1365-2966.2004.08549.x. ISSN 0035-8711.
- ^ "Halton Arp's Atlas of Peculiar Galaxies". cseligman.com. Retrieved 2024-04-19.
- ^ Laurikainen, E.; Salo, H.; Aparicio, A. (1998-05-01). "BVRI imaging of M51-type interacting galaxy pairs. I. Data reductions". Astronomy and Astrophysics Supplement Series. 129 (3): 517–540. Bibcode:1998A&AS..129..517L. doi:10.1051/aas:1998401. ISSN 0365-0138.
- ^ a b Camps-Fariña, A; Beckman, J E; Font, J; Moral-Castro, I del; Sanchez, S F; Borlaff, A. "Arp 70: an interacting galaxy with extreme outflows". Oxford Academic.
- ^ "UGC 934". simbad.u-strasbg.fr. Retrieved 2024-04-19.
- ^ Lacerda, Eduardo A. D.; Sánchez, Sebastián F.; Cid Fernandes, R.; López-Cobá, Carlos; Espinosa-Ponce, Carlos; Galbany, L. (2020-03-01). "Galaxies hosting an active galactic nucleus: a view from the CALIFA survey". Monthly Notices of the Royal Astronomical Society. 492 (3): 3073–3090. arXiv:2001.00099. Bibcode:2020MNRAS.492.3073L. doi:10.1093/mnras/staa008. ISSN 0035-8711.