Abell 2667

{{Short description|Galaxy cluster in the constellation Sculptor}}

{{Infobox galaxy cluster

| name = Abell 2667

| image = Abell 2667HSTFull.jpg

| caption = Abell 2667 from Hubble Space Telescope. Comet Galaxy is top-left (blue).

| credit =

| epoch = J2000

| constellation = Sculptor

| ra = {{RA|23|51|42}}

| dec = {{DEC|-26|00|00}}

| brightest_member =

| member_no =

| richness = 3

| bmtype = I

| velocity_dispersion =

| redshift = 0.23000

| distance = {{convert|927|Mpc|Mly|0|abbr=on|lk=on}} {{hub|0.705}}

| temperature =

| mass =

| luminosity =

| flux =

| other_names =

}}

File:Abell2667Location.png

Abell 2667 is a galaxy cluster. It is one of the most luminous galaxy clusters in the X-ray waveband known at a redshift about 0.2 and is a well-known gravitational lens.

On 2 March 2007, a team of astronomers reported the detection of the Comet Galaxy in this cluster.

This galaxy is being ripped apart by the cluster's gravitational field and harsh environment. The finding sheds light on the mysterious process by which gas-rich spiral-shaped galaxies might evolve into gas-poor irregular or elliptical-shaped galaxies over billions of years.

Abell 2667 is similar to many other low-redshift and cool-core galaxy clusters in terms of the cooling processes that happen at its center, which consists of a brightest cluster galaxy (BCG) and a supermassive black hole (SMBH).{{cite journal | arxiv=2410.16831 | doi=10.1051/0004-6361/202452396 | last1=Lepore | first1=M. | last2=Pinto | first2=C. | last3=Tozzi | first3=P. | last4=Gaspari | first4=M. | last5=Gastaldello | first5=F. | last6=Liu | first6=A. | last7=Rosati | first7=P. | last8=van Weeren | first8=R. | last9=Cresci | first9=G. | last10=Iani | first10=E. | last11=Rodighiero | first11=G. | title=Cooling rate and turbulence in the intracluster medium of the cool-core cluster Abell 2667 | journal=Astronomy & Astrophysics | date=2024 | volume=694 | pages=A115 }}

Abell 2667 acts as an intense gravitational telescope, lensing red-shifted galaxies behind it.{{cite journal | arxiv=1410.6594 | doi=10.1088/0004-6256/149/1/3 | last1=Cao | first1=Shuo | last2=Covone | first2=Giovanni | last3=Jullo | first3=Eric | last4=Richard | first4=Johan | last5=Izzo | first5=Luca | last6=Zhu | first6=Zong-Hong | title=Source plane reconstruction of the giant gravitational arc in Abell 2667: A candidate Wolf-Rayet galaxy at z~1 | date=2014 }} Although the warped galaxies may appear to be part of this galaxy cluster, they are in fact significantly more distant."Illusion and Evolution - NASA Science". 2008-11-07. Retrieved 2025-01-31.