Barry McKernan, Tahir Yaqoob, Ian M. George, and T. J. Turner.
The Kinematics and Physical Conditions of the Ionized Gas in NGC 4593 from Chandra High-Energy Grating Spectroscopy
(англ.)
//
The Astrophysical Journal
. —
IOP Publishing
, 2003. —
doi
:
. —
arXiv
:
.
John Kormendy, Mark E. Cornell, David L. Block, Johan H. Knapen, and Emma L. Allard.
Pseudobulges in the Disk Galaxies NGC 7690 and NGC 4593
(англ.)
//
The Astrophysical Journal
. —
IOP Publishing
, 2006. —
doi
:
. —
arXiv
:
.