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- ID:
- ivo://CDS.VizieR/J/MNRAS/417/L6
- Title:
- Catalogue of stellar cluster properties in M83
- Short Name:
- J/MNRAS/417/L6
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We study the stellar cluster population in two adjacent fields in the nearby, face-on spiral galaxy, M83, using multi-wavelength WFC3/HST imaging. After automatic detection procedures, the clusters are selected through visual inspection to be centrally concentrated, symmetric, and resolved on the images, which allows us to differentiate between clusters and likely unbound associations. We compare our sample with previous studies and show that the differences between the catalogues are largely due to the inclusion of large numbers of diffuse associations within previous catalogues as well as the inclusion of the central starburst region, where the completeness limit is significantly worse than in the surrounding regions. We derive the size distribution of the clusters, which is well described by a log-normal distribution with a peak at ~2.5pc, and find evidence for an expansion in the half-light radius of clusters with age. The luminosity function of the clusters is well approximated by a power-law with index, -2, over most of the observed range, however a steepening is seen at M_V=-9.3 and -8.8 in the inner and outer fields, respectively. Additionally, we show that the cluster population is inconsistent with a pure power-law mass distribution, but instead exhibits a truncation at the high mass end. If described as a Schechter function, the characteristic mass is 1.6 and 0.5x10^5^M_{sun}_, for the inner and outer fields, respectively, in agreement with previous estimates of other cluster populations in spiral galaxies. Comparing the predictions of the mass independent disruption (MID) and mass dependent disruption (MDD) scenarios with the observed distributions, we find that both models can accurately fit the data. However, for the MID case, the fraction of clusters destroyed (or mass lost) per decade in age is dependent on the environment, hence, the age/mass distributions of clusters are not universal. In the MDD case, the disruption timescale scales with galactocentric distance (being longer in the outer regions of the galaxy) in agreement with analytic and numerical predictions. Finally, we discuss the implications of our results on other extragalactic surveys, focussing on the fraction of stars that form in clusters and the need (or lack thereof) for infant mortality.
- ID:
- ivo://CDS.VizieR/II/224
- Title:
- Catalogue of Stellar Diameters (CADARS)
- Short Name:
- II/224
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- For 9733 stars this catalog lists all values of the apparent and absolute radii from the literature. Data were compiled beginning 1950 up to 1997. The stars are listed according to the following order of identification: HD number, DM number, variables with constellation name in alphabetical order of the abbreviations, other identifications in alphabetical order, LMC and SMC stars. The apparent magnitudes and spectral types are those reported by the authors, as they are basic data used in some methods for obtaining the stellar diameters. The catalogue is followed by the lists of the Remarks and References. Details and statistics will appear in A&A Suppl. This version supersedes the previous editions by M.Fracassini, L.E. Pasinetti, F. Manzolini (1981A&AS...45..145F, Cat. <II/61>); and M. Fracassini, L.E. Pasinetti-Fracassini, L. Pastori and R. Pironi (1988BICDS..35..121F, Cat. <II/155>)
- ID:
- ivo://CDS.VizieR/J/A+A/407/631
- Title:
- Catalogue of stellar effective magnetic fields
- Short Name:
- J/A+A/407/631
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the catalogue of averaged quadratic effective magnetic fields <B_e_> for 596 main sequence and giant stars. The catalogue is derived from measurements of the stellar effective magnetic field strengths B_e_, which were compiled from the existing literature.
- ID:
- ivo://CDS.VizieR/B/mk
- Title:
- Catalogue of Stellar Spectral Classifications
- Short Name:
- B/mk
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This file contains spectral classifications for stars collected from the literature, serving as a continuation of the compilations produced by the Jascheks, by Kennedy, and by Buscombe. The source of each spectral type is indicated by a standard 19-digit bibcode citation. These papers of course should be cited in publication, not this compilation. The stars are identified either by the name used in each publication or by a valid SIMBAD identifier. Some effort has been made to determine accurate (~1" or better) coordinates for equinox J2000 (and epoch 2000 if possible), and these serve as a secondary identifier. To the extent possible with current astrometric sources, the components of double stars and stars with composite spectra are shown as separate entries. Magnitudes are provided as an indication of brightness, but these data are not necessarily accurate, as they often derive from photographic photometry or rough estimates. The file includes only spectral types determined from spectra (viz. line and band strengths or ratios), omitting those determined from photometry (e.g. DDO, Vilnius) or inferred from broadband colors or spectral energy distributions. The classifications include MK types as well as types not strictly on the MK system (white dwarfs, Wolf-Rayet, etc), and in addition simple HD-style temperature types. Luminosity classes in the early Mount Wilson style (e.g. 'd' for dwarf, 'g' for giant) and other similar schemes have been converted to modern notation. Since a citation is provided for each entry, the source paper should be consulted for details about classification schemes, spectral dispersion, and instrumentation used. System-defining primary MK standard stars are included from the last lists by Morgan and Keenan, and are flagged by a + sign in column 83. The early-type standards comprise the 1973 "dagger standards" (1973ARA&A..11...29M) and stars from the Morgan, Abt, and Tapscott atlas (1978rmsa.book.....M). Standards from Table I of the Morgan & Abt 'MKA' paper (1972AJ.....77...35M) not appearing in the two later lists are added. Keenan made continual adjustments to the standards lists up to the time of his death. Thus the late-type standards comprise those marked as high-weight standards in the 1989 Perkins catalogue (1989ApJS...71..245K = III/150); the revised S-type standards in collaboration with Boeshaar (1980ApJS...43..379K); plus the carbon standards and class IIIb 'clump giants' in collaboration with Barnbaum (1996ApJS..105..419B and 1999ApJ...518..859K). In addition, I have made use of the final types by Keenan up to January 2000 shown at the Ohio State Web site (http://www.astronomy.ohio-state.edu/MKCool), accessed in autumn 2003. Though the present file contains all the stars in these lists, only those marked as standards are flagged as such. Garrison's list of MK 'anchor points' might also be consulted in this regard (1994mpyp.conf....3G, and http://www.astro.utoronto.ca/~garrison/mkstds.html). The catalogue includes for the first time results from many large-scale objective-prism spectral surveys done at Case, Stockholm, Crimea, Abastumani, and elsewhere. The stars in these surveys were usually identified only on charts or by other indirect means, and have been overlooked heretofore because of the difficulty in recovering the stars. More complete results from these separate publications, including notes and identifications, have been made available to the CDS, and are kept at the Lowell Observatory ftp area (ftp://ftp.lowell.edu/pub/bas/starcats). Not all of these stars are present in SIMBAD. As a 'living catalogue', an attempt will be made to keep up with current literature, and to extend the indexing of citations back in time.
- ID:
- ivo://CDS.VizieR/III/233B
- Title:
- Catalogue of Stellar Spectral Classifications
- Short Name:
- III/233B
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This file contains spectral classifications for stars collected from the literature, serving as a continuation of the compilations produced by the Jascheks, by Kennedy, and by Buscombe. The source of each spectral type is indicated by a standard 19-digit bibcode citation. These papers of course should be cited in publication, not this compilation. The stars are identified either by the name used in each publication or by a valid SIMBAD identifier. Some effort has been made to determine accurate (~1" or better) coordinates for equinox J2000, and these serve as a secondary identifier. Magnitudes are provided as an indication of brightness, but these data are not necessarily accurate, as they often derive from photographic photometry or rough estimates. The classifications include MK types as well as types not strictly on the MK system (white dwarfs, Wolf-Rayet, etc), and in addition simple HD-style temperature types. Luminosity classes in the early Mount Wilson style (e.g. 'd' for dwarf, 'g' for giant) and other similar schemes have been converted to modern notation. Since a citation is provided for each entry, the source paper should be consulted for details about classification schemes, spectral dispersion, and instrumentation used. The file includes only spectral types determined from spectra (viz. line and band strengths or ratios), omitting those determined from photometry (e.g. DDO, Vilnius) or inferred from broadband colors or bulk spectral energy distributions. System-defining primary MK standard stars are included from the last lists by Morgan and Keenan, and are flagged by a + sign in column 79. The early-type standards comprise the 1973 "dagger standards" (1973ARA&A..11...29M) and stars from the Morgan, Abt, and Tapscott atlas (1978rmsa.book.....M). Keenan made continual adjustments to the standards lists up to the time of his death. Thus the late-type standards comprise those marked as high-weight standards in the 1989 Perkins catalogue (1989ApJS...71..245K = III/150), plus the carbon- and S-type standards (1980ApJS...43..379K, 1996ApJS..105..419B), and class IIIb 'clump giants' (1999ApJ...518..859K). In addition, I have made use of the final types by Keenan up to January 2000 shown at the Ohio State Web site (http://www-astronomy.mps.ohio-state.edu/MKCool). Though the present file contains all the stars in these lists, only those marked as standards are flagged as such. Garrison's list of MK 'anchor points' might also be consulted in this regard (1994mpyp.conf....3G). The catalogue includes for the first time results from many large-scale objective-prism spectral surveys done at Case, Stockholm, Crimea, Abastumani, and elsewhere. The stars in these surveys were usually identified only on charts or by other indirect means, and have been overlooked heretofore because of the difficulty in recovering the stars. More complete results from these separate publications, including notes and identifications, have been made available to the CDS, and are kept at the Lowell Observatory ftp area (ftp://ftp.lowell.edu/pub/bas/starcats). Not all of these stars are present in SIMBAD. As a 'living catalogue', an attempt will be made to keep up with current literature, and to extend the indexing of citations back in time.
- ID:
- ivo://CDS.VizieR/II/59B
- Title:
- Catalogue of stellar UV fluxes (TD1)
- Short Name:
- II/59B
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- (no description available)
- ID:
- ivo://CDS.VizieR/V/53A
- Title:
- Catalogue of the Brightest Stars
- Short Name:
- V/53A
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This catalogue provides data on the 1628 stars brighter than magnitude 5.01 contained in the "catalogue des etoiles les plus brillantes" by Ochsenbein et al. (1984), compiled from the fourth edition of The Bright Star Catalogue (Hoffleit 1982). It differs from the original printed version by the following points: - the star designations in Hipparcos catalogue were added, as well as the positions expressed in the International Celestial Reference System (ICRS) (A) - the parallax and proper motion data were replaced by the Hipparcos values for almost all the bright stars (A) - the distances (expressed in light-years) were computed (A) - ecliptic coordinates were added to astrometric data - UBVRI photometry was taken from Lanz (1986); for that reason, three stars (HR 3229, HR 4392 and HR 6161) are fainter than 5 mag. Moreover, the blanks due to unknown indices were filled with the value 99.99 (or 99.999 for the uvbyHbeta photometry). - the greek letter "delta" that appears in some spectral types is now written in latin letters instead of the code "<04>". - the luminosity classes are coded as integer numbers in an additional column. - the number of components of visual double stars is given. (A) indicates data added for version 'A'
- ID:
- ivo://CDS.VizieR/II/175
- Title:
- Catalogue of 166 Ultraviolet Extinction Curves
- Short Name:
- II/175
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- (no description available)
- ID:
- ivo://CDS.VizieR/II/8
- Title:
- Catalogue of UVBGRI measurements
- Short Name:
- II/8
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This compilation contains the published results and the weighted means of the observations in the photoelectric photometric system described by Stebbins and Withford (1943). The six filters were selected to give nearly the same response in each of the six spectral regions for a solar-type star. The mean wavelengths or the filters are: ---------------------------------------------------- Filter U B V G R I Wavelength (nm) 353 422 488 570 719 1030 ---------------------------------------------------- The reduction of this system is made in order that (B+G+R) = 0.