Semantic Scholar Open Access 2013 18 sitasi

Gas rotation in galaxy clusters: signatures and detectability in X-rays

M. Bianconi S. Ettori C. Nipoti

Lihat Sumber DOI

Abstrak

We study simple models of massive galaxy clusters in which the intracluster medium (ICM) rotates differentially in equilibrium in the cluster gravitational potential. We obtain the X-ray surface brightness maps, evaluating the isophote flattening due to the gas rotation. Using a set of different rotation laws, we put constraint on the amplitude of the rotation velocity, finding that rotation curves with peak velocity up to \sim 600 km s^-1 are consistent with the ellipticity profiles of observed clusters. We convolve each of our models with the instrument response of the X-ray Calorimeter Spectrometer on board the ASTRO-H to calculate the simulated X-ray spectra at different distance from the X-ray centre. We demonstrate that such an instrument will allow us to measure rotation of the ICM in massive clusters, even with rotation velocities as low as \sim 100 km s^-1

Topik & Kata Kunci

Physics

Penulis (3)

M. Bianconi

S. Ettori

C. Nipoti

Format Sitasi

APA MLA BibTeX

Bianconi, M., Ettori, S., Nipoti, C. (2013). Gas rotation in galaxy clusters: signatures and detectability in X-rays. https://doi.org/10.1093/mnras/stt1112

Akses Cepat

Lihat di Sumber doi.org/10.1093/mnras/stt1112

Informasi Jurnal

Tahun Terbit: 2013
Bahasa: en
Total Sitasi: 18×
Sumber Database: Semantic Scholar
DOI: 10.1093/mnras/stt1112
Akses: Open Access ✓