Discovery of eight lensing clusters of galaxies

Autor:	Liang, S. M., Wen, Z. L., Han, J. L., Jiang, Y. Y.
Rok vydání:	2013
Předmět:	Astrophysics - Cosmology and Extragalactic Astrophysics
Druh dokumentu:	Working Paper
Popis:	Clusters of galaxies have a huge mass which can act as gravitational lenses. Galaxies behind clusters can be distorted to form arcs in images by the lenses. Herein a search was done for giant lensed arcs by galaxy clusters using the SDSS data. By visually inspecting SDSS images of newly identified clusters in the SDSS DR8 and Stripe 82 data, we discover 8 strong lensing clusters together with additional 3 probable and 6 possible cases. The lensed arcs show bluer colors than the member galaxies of clusters. The masses and optical luminosities of galaxy clusters interior to the arcs are calculated, and the mass-to-light ratios are found to be in the range of a few tens of M_Solar/L_Solar, consistent with the distribution of previously known lensing clusters. Comment: 7 pages, 4 figures, 1 table
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1310.4885 Zobrazit plný text záznamu View this record from Arxiv