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J/AJ/137/4956       Globular clusters around NGC 1407        (Romanowsky+, 2009)

Mapping the dark side with DEIMOS: globular clusters, X-ray gas, and dark matter in the NGC 1407 group. Romanowsky A.J., Strader J., Spitler L.R., Johnson R., Brodie J.P., Forbes D.A., Ponman T. <Astron. J., 137, 4956-4987 (2009)> =2009AJ....137.4956R
ADC_Keywords: Galaxies, nearby ; Clusters, globular ; Photometry, SDSS Keywords: dark matter - galaxies: clusters: general - galaxies: elliptical and lenticular, cD - galaxies: kinematics and dynamics - globular clusters: general - X-rays: galaxies Abstract: NGC 1407 is the central elliptical in a nearby evolved group of galaxies apparently destined to become a galaxy cluster core. We use the kinematics of globular clusters (GCs) to probe the dynamics and mass profile of the group's center, out to a radius of 60kpc (∼10 galaxy effective radii)-the most extended data set to date around an early-type galaxy. This sample consists of 172 GC line-of-sight velocities, most of them newly obtained using Keck/DEIMOS, with a few additional objects identified as dwarf-globular transition objects or as intragroup GCs. Description: The DEIMOS observations were carried out as part of Keck program 2006B_U024D (PI: J.P. Brodie). Candidate GCs were selected from Subaru/Suprime-Cam images of NGC 1407 taken in g'r'i' bands in very good seeing conditions (0.5"-0.6"). Spectroscopic observations were made with Keck-2/DEIMOS on 2006 November 19-21. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 87 190 Photometry and spectroscopy of globular cluster candidates around NGC 1407
See also: J/MNRAS/366/1230 : BI photometry of NGC 1407 and NGC 1400 GCs (Forbes+, 2006) J/MNRAS/369/1375 : Dwarf galaxies in NGC 1407 Group (Trentham+, 2006) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 6 I6 --- ID Suprime-Cam identification number, [RSS2009] NNNNNN in Simbad 8- 9 I2 --- LRIS ? Corresponding LRIS identification (1) 11- 12 I2 h RAh Hour of Right Ascension (J2000) (2) 14- 15 I2 min RAm Minute of Right Ascension (J2000) (2) 17- 22 F6.3 s RAs Second of Right Ascension (J2000) (2) 24 A1 --- DE- Sign of the Declination (J2000)(2) 25- 26 I2 deg DEd Degree of Declination (J2000) (2) 28- 29 I2 arcmin DEm Arcminute of Declination (J2000) (2) 31- 35 F5.2 arcsec DEs Arcsecond of Declination (J2000) (2) 37- 41 F5.1 arcsec Rp Projected distance from NGC 1407 43- 47 F5.1 deg PA Position angle on the sky (North through East) 49- 53 F5.2 mag imag i'0 band corrected magnitude (4) 55- 58 F4.2 mag g-i (g'-i')0 corrected color (4) 60- 63 F4.2 mag r-i (r'-i')0 corrected color (4) 65- 68 I4 km/s Velp ? Heliocentric line-of-sight velocity 70- 74 F5.3 --- z ? Redshift (for galaxy sources only) 75 A1 --- u_z [?] Indicates uncertain z 77- 78 I2 km/s e_Velp ? Error in Velp 80- 87 A8 --- Type Source type (6)
Note (1): From Cenarro et al., 2007AJ....134..391C, <[CBS2007] NN> in Simbad. Note (2): The center of the galaxy NGC 1407 is at 03:40:11.808 -18:34:47.92 (J2000), and the systemic velocity is 1784km/s. Note (4): The photometric values have been corrected for Galactic extinction (Schlegel et al., 1998ApJ...500..525S). Note (6): Ojects with "?" have uncertain identifications, and objects in (parentheses) have marginal signal-to-noise. Type codes are: star = star GC = globular cluster IGC = intra-group globular cluster DGTO = dwarf-globular transition object gal = background galaxy
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 07-Nov-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

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