Cúmul d'Escaire

Infotaula objecte astronòmicCúmul d'Escaire
Tipuscúmul de galàxies Modifica el valor a Wikidata
Constel·lacióTriangle Austral i Escaire Modifica el valor a Wikidata
ÈpocaJ2000.0 Modifica el valor a Wikidata
Característiques físiques i astromètriques
Distància de la Terra67,8 Mpc [1] Modifica el valor a Wikidata
Desplaçament cap al roig0,0155[2] Modifica el valor a Wikidata
Velocitat radial4.841 km/s[3] Modifica el valor a Wikidata
Ascensió recta (α)16h 14m 22.5s[4] Modifica el valor a Wikidata
Declinació (δ)-61° 7' 53.004''[4] Modifica el valor a Wikidata
Part deSupercúmul Hidra-Centaure, Laniakea i Zona d'Elusió Modifica el valor a Wikidata
Catàlegs astronòmics
AM 1610-604 (A catalogue of southern peculiar galaxies and associations)
PBC J1614.4-6050 (The Palermo Swift-BAT hard X-ray catalogue. II. Results after 39 months of sky survey)
MCXC J1614.3-6052 (The MCXC: a meta-catalogue of X-ray detected clusters of galaxies)
PSZ2 G325.17-07.05 (Planck 2015 results XXVII. The second Planck catalogue of Sunyaev-Zeldovich sources) Modifica el valor a Wikidata

El cúmul d'Escaire (ACO 3627 o Abell 3627) és un cúmul de galàxies que sembla la part més important i massiva del Gran Atractor.[5] De fet, s'estima que la massa del cúmul d'Escaire és de 1015 masses solars;[6] conté un 10% o més del total del Gran Atractor. Com que només està situat a 7 graus del nostre pla galàctic, el seu estudi des de la Terra és molt difícil, ja que es troba en la denominada zona buida, i la mateixa Via Làctia n'impedeix una bona observació.

Referències

  1. ↑ URL de la referència: http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=Norma+Cluster.
  2. ↑ «Updating the {sigma}-T relationship for galaxy clusters» (en anglès). Astronomy and Astrophysics, 1998, pàg. 813–818.
  3. ↑ Renée C. Kraan-Korteweg «A nearby massive galaxy cluster behind the Milky Way» (en anglès). Nature, 6565, 2-1996, pàg. 519–521. DOI: 10.1038/379519A0.
  4. ↑ 4,0 4,1 R. Brent Tully «A systematic X-ray search for clusters of galaxies behind the Milky Way» (en anglès). Letters of the Astrophysical Journal, 2002, pàg. 774–788. DOI: 10.1086/343790.
  5. ↑ R. C. Kraan-Korteweg, in Lecture Notes in Physics 556, editat per D. Pageand J.G. Hirsch, p. 301 (Springer, Berlin, 2000).
  6. ↑ H. Boehringer et al., Astrophys. J. 467, 168 (1996)., R. C. Kraan-Korteweg et al., Nature 379, 519 (1996).

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