Access to Astronomical Catalogues

← Click to display the menu
J/A+A/531/A4   Ultra compact dwarfs and globulars in Hya I     (Misgeld+, 2011)

A large population of ultra-compact dwarf galaxies in the Hydra I cluster. Misgeld I., Mieske S., Hilker M., Richtler T., Georgiev I.Y., Schuberth Y. <Astron. Astrophys., 531, A4 (2011)> =2011A&A...531A...4M
ADC_Keywords: Clusters, galaxy ; Galaxies, optical ; Clusters, globular ; Galaxies, photometry Keywords: galaxies: clusters: individual: Hydra I - galaxies: dwarf - galaxies: fundamental parameters - galaxies: star clusters: general - galaxies: kinematics and dynamics - globular clusters: general Abstract: We performed a large spectroscopic survey of compact, unresolved objects in the core of the Hydra I galaxy cluster (Abell 1060), with the aim of identifying ultra-compact dwarf galaxies (UCDs) and investigating the properties of the globular cluster (GC) system around the central cD galaxy NGC 3311. We obtained VIMOS medium-resolution spectra of about 1200 candidate objects with apparent magnitudes 18.5<V<24.0mag, covering both the bright end of the GC luminosity function and the luminosity range of all known UCDs. Description: VIMOS allows simultaneous observation of four quadrants in one telescope pointing. Each quadrant is of dimension 7'x8', with a gap of about 2' between the quadrants. For the UCD survey, we placed four multi-object spectroscopy (MOS) pointings around NGC 3311, the central cD galaxy of the Hydra I cluster. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea1.dat 56 118 Catalogue of the 118 identified cluster GCs/UCDs ordered by increasing apparent magnitude
See also: J/ApJS/85/249 : Surface Photometry of Hydra I Galaxies. I. (Hamabe 1993) J/A+A/486/697 : Hydra I Cluster Catalogue (HCC) (Misgeld+, 2008) J/AJ/137/498 : UCD and bright GC in Fornax (Gregg+, 2009) Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [HUCD] (1) 5- 7 I3 --- ID [1/118] Identification (HUCDNN or NNN) (1) 10- 11 I2 h RAh Right ascension (J2000.0) 13- 14 I2 min RAm Right ascension (J2000.0) 16- 19 F4.1 s RAs Right ascension (J2000.0) 21 A1 --- DE- Declination sign (J2000.0) 22- 23 I2 deg DEd Declination (J2000.0) 25- 26 I2 arcmin DEm Declination (J2000.0) 28- 31 F4.1 arcsec DEs Declination (J2000.0) 33- 37 F5.2 arcmin R Projected distance to NGC 3311 39- 43 F5.2 mag V0 Extinction corrected apparent V magnitude 45- 48 F4.2 mag (V-R)0 Extinction corrected apparent V-R colour index 50- 53 I4 km/s RV Radial velocity 55- 56 I2 km/s e_RV rms uncertainty on RV
Note (1): HUCD1-HUCD52, for cluster members brighter than MV=-11.0mag, and 53-118 for cluster members fainter than MV=-11.0mag.
Nomenclature note: Clusters are <[MMH2011] HUCDNN> in Simbad for nos 1-52 and <[MMH2011] NNN> for nos 53-118. History: From electronic version of the journal
(End) Patricia Vannier [CDS] 03-Oct-2011
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact