MACS J2211.7−0349 BCG
Massive elliptical BCG in Aquarius with diffuse radio emission.
MACS J2211.7−0349 BCG is a massive elliptical galaxy in the constellation Aquarius. It serves as the brightest cluster galaxy (BCG) of the X-ray luminous galaxy cluster MACS J2211.7−0349, which is also cataloged as RXC J2211.7−0350. The galaxy has a redshift of z = 0.396.
Its total radio power is below 23.71 W Hz−1, and its total radio luminosity at 1.4 GHz is less than 30.5 × 10³⁸ keV s⁻¹ Hz⁻¹. The BCG has an ellipticity of e = 0.224 and a position angle of θ = 8.36°. It is offset from the X-ray cluster peak by 38.3 kiloparsecs. The total flux density at 24 micrometers is 0.22 mJy, while the J-band flux density is 0.87 mJy. Its magnitude is −26.35.
Based on a May 2016 study of stellar masses in brightest cluster galaxies, the total stellar mass of MACS J2211.7−0349 BCG is estimated at 0.835 × 10¹² M☉. Diffuse radio emission extends from the BCG, with a source size of 220 kiloparsecs and a measured flux density of 0.58 ± 0.05 mJy.
Quick Facts
- Epoch
- J2000.0
- Constellation Name
- Aquarius
- Ra
- 22 · 11 · 45.90
- Dec
- -03 · 49 · 44.47
- Z
- 0.396000
- H Radial V
- 118,718 ± 0 km/s
- Group Cluster
- MACS J2211.7−0349 (RXC J2211.7−0350)
- Dist Ly
- 1753.00 ± 122.71 Mpc
- Mag J
- 14.89
- Names
- 2MASX J22114596−0349438, APMUKS(BJ) B220909.94−040434.6, SDSS J221145.91−034944.4, LEDA 3958078
Facts from the source article.
Lore & Background
MACS J2211.7−0349 BCG is the brightest cluster galaxy of the X-ray luminous cluster MACS J2211.7−0349 (RXC J2211.7−0350). Its estimated ellipticity is e = 0.224 with a position angle of ɵ = 8.36. The galaxy is offset by 38.3 kiloparsecs from the X-ray cluster peak. Diffuse radio emission originates from the BCG, with a source size of 220 kiloparsecs and a measured flux density of 0.58 ± 0.05 mJy. The total radio power is less than 23.71 W Hz−1, and the total radio luminosity is less than 30.5 × 10^38 keV s−1 Hz−1 at 1.4 GHz.
Reader's Guide
MACS J2211.7−0349 BCG is notable as a massive elliptical galaxy and the brightest cluster galaxy of an X-ray luminous cluster. Its stellar mass, estimated at 0.835 × 10^12 M☉ based on a May 2016 study, places it among significant BCGs. The galaxy's offset from the X-ray peak and its diffuse radio emission suggest interactions with the intracluster medium. The measured flux densities at 24 μm (0.22 mJy) and J-band (0.87 mJy), along with its magnitude of -26.35, provide key photometric data. The radio source size of 220 kiloparsecs indicates extended emission, contributing to understanding of radio-mode feedback in clusters.
Did You Know?
- MACS J2211.7−0349 BCG has a redshift of z = 0.396.
- Its total stellar mass is estimated at 0.835 × 10^12 M☉.
- Diffuse radio emission from the BCG has a size of 220 kiloparsecs.
More in Elliptical and Irregular Galaxies, Part 3 1-24
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