RGG 118

Database links to RGG 118

Galaxy
RGG 118

RGG 118 Taken with the SDSS and the Chandra Space Telescope .

AladinLite

Constellation

Snake

Position
equinox : J2000.0 , epoch : J2000.0

Right ascension

15 ^h 23 ^m 03.8 ^s

declination

+ 11 ° 45 ′ 46 ″

Appearance

Physical data

Redshift

0.0243

Radial velocity

7285 km / s

Stroke distance
v _rad / H ₀

(328 ± 23)  x  10 ⁶ ly
(100.5 ± 7.0) Mpc

history

Catalog names

SDSS J152303.80 + 114546.0

SDSS J1523 + 1145 or RGG 118 is a dwarf galaxy about 340 million light years away from the Milky Way . The name RGG 118 is made up of the first letters of the three scientists, Reines, Greene and Geha, who first described the galaxy in 2013, and the number of the object in their article.

The galaxy has a mass of 2.5 × 10 ⁹ solar masses and a redshift of z = 0.0234. The galaxy is also home to a supermassive black hole with a mass of 50,000 solar masses. With this mass it is the smallest supermassive black hole to date.

Individual evidence

↑ ^a ^b Jan Dönges: Amazingly tiny giant in space. The smallest supermassive black hole ever found contains just 50,000 solar masses. It could now reveal how its monstrous cousins came about. In: Spektrum.de. August 13, 2015, accessed August 13, 2015 .
↑ ^a ^b ^c NASA / IPAC EXTRAGALACTIC DATABASE
↑ VIVIENNE F. BALDASSARE, AMYE. REINES, ELENAGALLO, JENNYE. GREENE: A ~ 50,000M BLACK HOLE IN THE NUCLEUS OF RGG 118 . June 24, 2015, arxiv : 1506.07531 (English).

[Spektrum150812-1] Jan Dönges: Amazingly tiny giant in space. The smallest supermassive black hole ever found contains just 50,000 solar masses. It could now reveal how its monstrous cousins came about. In: Spektrum.de. August 13, 2015, accessed August 13, 2015 .

[NED-2] NASA / IPAC EXTRAGALACTIC DATABASE

[Baldassare15-3] VIVIENNE F. BALDASSARE, AMYE. REINES, ELENAGALLO, JENNYE. GREENE: A ~ 50,000M BLACK HOLE IN THE NUCLEUS OF RGG 118 . June 24, 2015, arxiv : 1506.07531 (English).