J/A+A/533/A36 VI photometry and velocity map of NGC 6388 (Luetzgendorf+, 2011)
Kinematic signature of an intermediate-mass black hole in the globular cluster
NGC 6388.
Luetzgendorf N., Kissler-Patig M., Noyola E., Jalali B., de Zeeuw P.T.,
Gebhardt K., Baumgardt H.
<Astron. Astrophys. 533, A36 (2011)>
=2011A&A...533A..36L 2011A&A...533A..36L
ADC_Keywords: Radial velocities ; Photometry, CCD ; Clusters, globular
Keywords: black hole physics - globular cluster: individual: NGC 6388 -
stars: kinematics and dynamics
Abstract:
We present results from ground based VLT/FLAMES spectroscopy in
combination with HST data for the globular cluster NGC 6388. The aim
of this work is to probe whether this massive cluster hosts an
intermediate-mass black hole at its center and to compare the results
with the expected value predicted by the M-σ scaling relation.
Objects:
------------------------------------------------
RA (2000) DE Designation(s)
------------------------------------------------
17 36 17.5 -44 44 08 NGC 6388 = Cl VDBH 234
------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
phot.dat 68 18835 HST photometry of I- and V filter images
velmap.dat 28 655 Velocity map of the combined ARGUS pointing
--------------------------------------------------------------------------------
See Also:
J/AJ/107/1764 : RR Lyrae and CMD of NGC 6388 (Silbermann+, 1994)
J/A+A/464/967 : Abundances of red giants in NGC 6388 (Carretta+, 2007)
J/AJ/134/229 : CT1T2 Photometry of red giants in 2 globulars (Hughes+, 2007)
J/ApJ/677/1069 : Blue stragglers in NGC 6388 (Dalessandro+, 2008)
Byte-by-byte Description of file: phot.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 I7 --- ID [1/5004877] Star ID
12- 19 F8.3 pix Xpos x-coordinate on HST image (1)
24- 31 F8.3 pix Ypos y-coordinate on HST image (1)
35- 40 F6.3 mag Imag I magnitude
45- 49 F5.3 mag e_Imag I magnitude error
54- 59 F6.3 mag Vmag ?=99.999 V magnitude
64- 68 F5.3 mag e_Vmag ?=9.999 V magnitude error
--------------------------------------------------------------------------------
Note (1): Cluster center (J2000):
RA=17:36:17.441±0.2", DE=-44:43:57.33±0.1"
(xc, yc)=(2075.5,2548.5)±(3.1,2.1)pix (1pix=0.05").
--------------------------------------------------------------------------------
Byte-by-byte Description of file: velmap.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
3- 4 I2 pix Xpos [1/24] x-coordinate in combined ARGUS pointing (1)
7- 8 I2 pix Ypos [1/29] y-coordinate in combined ARGUS pointing (1)
13- 18 F6.2 km/s HRV Heliocentric radial velocity (2)
25- 28 F4.2 km/s e_HRV Heliocentric radial velocity error
--------------------------------------------------------------------------------
Note (1): 1pix=0.3".
Note (2): Absolute radial velocities in heliocentric reference frame.
--------------------------------------------------------------------------------
Acknowledgements:
Nora Luetzgendorf, nluetzge(at)eso.org
(End) Nora Luetzgendorf [Munich, Germany] 25-Jul-2011