2014ApJ...780..132M

Query : 2014ApJ...780..132M

2014ApJ...780..132M - Astrophys. J., 780, 132 (2014/January-2)

The radial distribution of X-ray binaries and globular clusters in NGC 4649 and their relation with the local stellar mass density.

MINEO S., FABBIANO G., D'ABRUSCO R., FRAGOS T., KIM D.-W., STRADER J., BRODIE J.P., GALLAGHER J.S., ZEZAS A. and LUO B.

Abstract (from CDS):

We investigate the radial distribution of the low-mass X-ray binary (LMXB) population in the elliptical galaxy NGC 4649, using Chandra and Hubble data to separate the field and globular cluster (GC) populations. GCs with LMXBs have the same radial distribution as the parent red and blue GCs. The radial profile of field LMXBs follows the V-band profile within the D25 of NGC 4649. Using the spatial information provided by our data, we find that the global galaxy-wide relations among cumulative number and luminosity of LMXBs and the integrated stellar mass hold on local scales within D25. An excess of field LMXBs with respect to the V-band light is observed in the galaxy's outskirts, which may be partially due to unidentified GC sources or to a rejuvenated field LMXB population caused by past merging interactions.

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Journal keyword(s): binaries: general - galaxies: individual: NGC 4946/NGC 4947 (read: NGC 4649) - galaxies: interactions - X-rays: binaries

Simbad objects: 14

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Number of rows : 14
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 1399 rG 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1636 1
2 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1504 0
3 NGC 4278 LIN 12 20 06.8242 +29 16 50.722 11.54 11.09 10.16     ~ 988 2
4 NGC 4646 GiG 12 42 52.1454845712 +54 51 21.510402480   13.8       ~ 40 0
5 2XMM J124332.1+113949 AG? 12 43 32.1686153136 +11 39 50.259044088           ~ 3 0
6 NGC 4647 H2G 12 43 32.542 +11 34 56.89   12.5 12.5     ~ 423 1
7 SDSS J124336.50+113009.2 QSO 12 43 36.5099248392 +11 30 09.241149528           ~ 7 0
8 M 60 GiC 12 43 39.9708251934 +11 33 09.688174067   10.3       ~ 1395 1
9 [CHP2004] J124346.9+113234 XB* 12 43 46.9 +11 32 34           ~ 5 0
10 SDSS J124408.96+113334.0 Sy1 12 44 08.9599170576 +11 33 34.068772584   19.86 19.78     ~ 17 1
11 NGC 4697 GiG 12 48 35.8981498824 -05 48 02.482374564   10.97   9.83   ~ 895 0
12 NGC 4696 rG 12 48 49.2724775784 -41 18 39.304053252   11.21   10.7   ~ 510 3
13 NGC 4947 Sy2 13 05 20.1999678264 -35 20 14.636548896   12.74 11.89 11.67 12.2 ~ 68 1
14 NGC 4946 GiG 13 05 29.3769395952 -43 35 28.165516872   13.31   11.61   ~ 60 0

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