J/MNRAS/421/2872 BVI photometry of NGC 4261 globular clusters (Bonfini+, 2012)
Studying the asymmetry of the globular cluster population of NGC 4261.
Bonfini P., Zezas A., Birkinshaw M., Worrall D.M., Fabbiano G.,
O'Sullivan E., Trinchieri G., Wolter A.
<Mon. Not. R. Astron. Soc., 421, 2872-2887 (2012)>
=2012MNRAS.421.2872B 2012MNRAS.421.2872B
ADC_Keywords: Galaxies, nearby ; Clusters, globular ; Photometry, UBVRI
Keywords: globular clusters: general - galaxies: elliptical and lenticular, cD -
galaxies: individual: NGC 4261 - galaxies: individual: 3C 270 -
galaxies: interactions - galaxies: star clusters: general
Abstract:
We present an analysis of the globular cluster (GC) population of the
elliptical galaxy NGC 4261 based on Hubble Space Telescope Wide Field
Planetary Camera 2 data in the B, V and I bands. We study the spatial
distribution of the GCs in order to probe the anisotropy in the
azimuthal distribution of the discrete X-ray sources in the galaxy
revealed by Chandra images.
Description:
HST WFPC2 data for NGC 4261 were obtained with the F450W, F606W and
F814W filters (roughly corresponding to the B, V and I bands,
respectively; see WFPC2 Instrument Handbook, version 10.0, table 3.1).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 105 718 Catalogue of detected globular clusters
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See also:
J/MNRAS/272/391 : Globular clusters in the Magellanic Clouds (Ferraro+, 1995)
J/AcA/48/455 : Globular Clusters in M31 and M33 (Mochejska+, 1998)
J/AJ/119/727 : M31 globular clusters photometry (Barmby+, 2000)
J/A+A/369/812 : NGC 5128 globular clusters UVKs photometry (Rejkuba, 2001)
J/MNRAS/345/949 : NGC 3379 globular clusters UBRI photometry (Whitlock+, 2003)
J/MNRAS/355/608 : NGC 4649 (M60) globular clusters (Forbes+, 2004)
J/ApJS/150/367 : Globular clusters in NGC 5128 (Peng+, 2004)
J/A+A/433/43 : NGC 4636 globular cluster system C-T1 phot. (Dirsch+, 2005)
J/A+A/443/413 : VIKs photometry of NGC4365 globular clusters (Larsen+, 2005)
J/A+A/455/453 : Globular Cluster System of NGC5846 (Chies-Santos+, 2006)
J/MNRAS/366/1230 : BI photometry of NGC 1407 and NGC 1400 GCs (Forbes+, 2006)
J/ApJ/668/209 : HST photometry of NGC 5866 globulars (Cantiello+, 2007)
J/A+A/507/1375 : HST/ACS VI data of M31 globular clusters (Perina+, 2009)
J/AJ/140/2101 : NGC 5128 globular clusters photometry (Sinnott+, 2010)
J/ApJ/709/377 : The globular cluster system of NGC 4636 (Park+, 2010)
J/MNRAS/401/1965 : Globular clusters in M104 (Harris+, 2010)
J/MNRAS/402/803 : M31 globular cluster system (Peacock+, 2010)
J/ApJS/197/33 : The M87 globular cluster system (Strader+, 2011)
J/A+A/525/A19 : Photometry of early galaxies globulars (Chies-Santos+, 2011)
J/MNRAS/420/37 : NGC 4365 globular clusters (Blom+, 2012)
J/ApJ/634/272 : X-ray sources in NGC 4261 (Giordano+, 2005)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/718] Globular cluster sequential number
5- 6 I2 h RAh Equatorial Right ascension (J2000)
8- 9 I2 min RAm Equatorial Right ascension (J2000)
11- 16 F6.3 s RAs Equatorial Right ascension (J2000)
18 A1 --- DE- Equatorial Declination sign (J2000)
19- 20 I2 deg DEd Equatorial Declination (J2000)
22- 23 I2 arcmin DEm Equatorial Declination (J2000)
25- 29 F5.2 arcsec DEs Equatorial Declination (J2000)
31- 34 F4.2 --- b/a Elongation (major to minor axis ratio)
36- 39 F4.2 pix FWHM FWHM assuming a Gaussian core,
in units of WFPC2 pixels
41- 44 F4.2 --- Stel [0/1] SEXTRACTOR stellarity index
(1=point like; 0=extended)
46- 51 F6.1 --- S/N S/N ratio within aperture
53- 57 F5.2 mag Bmag ?=- HST/WFPC2 F450W (B band) aperture-corrected
magnitude (if GC detected in B band)
59- 62 F4.2 mag e_Bmag ?=- rms uncertainty on Bmag
64- 68 F5.2 mag Vmag HST/WFPC2 F606W (V band) aperture-corrected
magnitude
70- 73 F4.2 mag e_Vmag rms uncertainty on Vmag
75- 79 F5.2 mag Imag HST/WFPC2 F814W (I band) aperture-corrected
I band magnitude
81- 84 F4.2 mag e_Imag rms uncertainty on Imag
86- 90 F5.2 mag B-V ?=- B-V color index (if GC detected in B band)
92- 95 F4.2 mag e_B-V ?=- rms uncertainty on B-V
97-100 F4.2 mag V-I V-I color index
102-105 F4.2 mag e_V-I rms uncertainty on V-I
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 07-Mar-2013