Masses of Praesepe members : J/MNRAS/434/3236

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Authors : Khalaj P. orcid , Baumgardt H. (hide) , Baumgardt H. et..al

VizieR DOI : 10.26093/cds/vizier.74343236
Bibcode : 2013MNRAS.434.3236K (ADS) (Simbad) (Objects)
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CDS Keywords : Clusters, open; Proper motions; Photometry, infrared; Stars, masses
UAT : Open star clusters, Proper motions, Infrared photometry, Stellar masses

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Inserted into VizieR : 09-Oct-2014
Last modification : 06-Aug-2024

The stellar mass function, binary content and radial structure of the open cluster Praesepe derived from PPMXL and SDSS data. (2013)

Keywords : stars luminosity function, mass function - open clusters and associations: individual: Praesepe

Abstract:We have determined possible cluster members of the nearby open cluster Praesepe (M44) based on J and K photometry and proper motions from the PPMXL catalogue and z photometry from the Sloan Digital Sky Survey. In total, we identified 893 possible cluster members down to a magnitude of J=15.5mag, corresponding to a mass of about 0.15M_{sun}_ for an assumed cluster distance modulus of (m-M)0=6.30mag (d~182pc), within a radius of 3.5{deg} around the cluster centre. We derive a new cluster centre for Praesepe (RA_centre_=8:39:37, DE_centre_=19:35:02). We also derive a total cluster mass of about 630M_{sun}_, and a 2D half-number and half-mass radius of 4.25 and 3.90pc, respectively. ...(more)
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Monthly Notices policies
In this study, we combine data from the PPMXL catalogue (Roser et al., 2010AJ....139.2440R, Cat. I/317) with z magnitudes from SDSS DR9 (Ahn et al., 2012ApJS..203...21A, Cat. V/139). The PPMXL catalogue combines the USNO-B1.0 (Monet et al. 2003AJ....125..984M, Cat. I/284) and 2MASS catalogues (Skrutskie et al. 2006AJ....131.1163S, Cat. VII/233), yielding the largest collection of proper motions in the International Celestial Reference Frame to date (Roser et al., 2010AJ....139.2440R, Cat. I/317). Cat. J/A+A/531/A92).

  • I/257 : Proper Motions in Praesepe (Wang+, 1995)
  • I/284 : The USNO-B1.0 Catalog (Monet+ 2003)
  • I/317 : PPMXL Catalog (Roeser+ 2010)
  • V/139 : SDSS Photometric Catalog, DR 9 (Adelman-McCarthy+, 2012)
  • VII/233 : 2MASS Extended sources (IPAC/UMass, 2003-2006)
  • J/AJ/134/2340 : Membership of Praesepe & Coma Berenices clusters
  • J/MNRAS/426/3419 : UKIDSS GCS Praesepe members (Boudreault+, 2012)
  • J/MNRAS/442/2081 : Praesepe members light curves (Kovacs+, 2014)

                


                

                    

                


                

                    

                


                

                    
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