| NGC 5532 | |
|---|---|
 NGC 5532 bySDSS | |
| Observation data (J2000epoch) | |
| Constellation | Boötes |
| Right ascension | 14h 16m 52.9s[1] |
| Declination | +10° 48′ 27″[1] |
| Redshift | 0.024710 ± 0.000010[1] |
| Heliocentric radial velocity | 7,408 ± 3km/s[1] |
| Distance | 210 ± 85Mly (64.5 ± 26.1Mpc)[1] |
| Apparent magnitude (V) | 12.59[2] |
| Characteristics | |
| Type | D[2] |
| Apparent size (V) | 1.32′ × 1.02′[1] |
| Notable features | Radio galaxy |
| Other designations | |
| UGC 9137,3C 296, 4C +10.39,MCG +02-36-062, PKS 1414+11,PGC 51006[1] | |
NGC 5532 is anelliptical galaxy located in the constellationBoötes. It is located at a distance of about 250 millionlight years from Earth, which, given its apparent dimensions, means that NGC 5532 is about 110,000 light years across.[1] It was discovered byWilliam Herschel on March 15, 1784.[3] It is aFanaroff–Riley type 1 (FR1)radio galaxy.[1]
NGC 5532 is an elliptical galaxy located in a galaxy group. In the centre of the galaxy lies a warped disk, while theisophotes display boxiness and the centre of the galaxy doesn't coincide with the isophotal centre.[4] The core appears obstructed in X-rays, with a column density of(1.0±0.5)×1022 cm−2, which is considered high for a FR1 galaxy.[5] In the centre of the galaxy lies asupermassive black hole whose mass is estimated to be108.8 (630 millions)M☉ based on theM–sigma relation.[6]
Two straightradio jets emerge from the galaxy core and form sharp edged lobes that appear to engulf the jets, although this could be a projection effect. The jets are typical of aFanaroff–Riley type 1radio galaxy, with faint bases that brighten abruptly 2.7 arcseconds from the nucleus and then the brightness gets lower at the distance from the core increases. The jet appears moving with relativistic speeds, 0.8 times thespeed of light at the start of the jet.[7] The northern jet has been observed in X-rays by theChandra X-ray Observatory, with emission detected at distances between 2 and 10 arcseconds from the core.[5]
NGC 5532 is located in agalaxy group that also includes the galaxyNGC 5531.[5] NGC 5532 forms a pair with lenticular galaxy NGC 5532A, which lies at a distance of about 16 kpc.[4] 21 galaxies have been as members of the group, lying within one megaparsec from NGC 5532.[8]
Twosupernovae have been observed in NGC 5532:
