- ID:
- ivo://CDS.VizieR/J/PASP/103/973
- Title:
- Photoelectric UBV from HK survey. II.
- Short Name:
- J/PASP/103/973
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Photoelectric UBV photometry is presented for a sample of 165 stars drawn from the extension of the HK objective-prism/interference-filter survey of Beers, Preston and Shectman (1985AJ.....90.2089B) to the northern galactic hemisphere. These results are part of continuing follow-up observations of candidate metal-deficient and horizontal-branch field stars and other interesting stars identified in the survey. A complete set of photometric observations is now available for three of the 25-square-degree survey fields. We estimate that the complete photometric sample of 299 northern HK candidates obtained to date contains on order 90 main-sequences turnoff, subgiant, and giant stars with [Fe/H]<=-1.0, 50 field blue horizontal-branch stars, and 30 stars with the photometric properties of field blue stragglers.
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- ID:
- ivo://CDS.VizieR/J/A+AS/115/469
- Title:
- Photoelectric V photometry of 57 and 58 Tau
- Short Name:
- J/A+AS/115/469
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Between January 13 and 22 in 1989, new photoelectric photometry for 57 Tauri (=HD 27397, alpha(1950.0)=4h17m09s, delta=13deg55.0arcmin) and 58 Tauri (=HD 27459, alpha(1950.0)=4h17m46s, delta=14deg58.6arcmin) was made at the Xinlong Station of Beijing Astronomical Observatory, with the 60cm reflector and its classical single channel photoelectric photometer. The filter is Johnson V. The comparison star is HR1358 (=HD 27483). After the raw magnitudes of the target stars were corrected for extinction by applying the nightly determined extinction coefficient from the comparison, 863 measurements of 57 Tau and 155 measurements of 58 Tau relative to HR 1358 were obtained, respectively. And then, nightly zero-point adjustments normalized to zero were made for the two measurement sets.
- ID:
- ivo://CDS.VizieR/II/87
- Title:
- Photographic Mags for Stars at High Galactic Lat
- Short Name:
- II/87
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This is a catalogue contains photographically determined UBVr magnitudes for more than 13000 stars at high galactic latitude. Eight pieces of information are given for each star: identification number, approximate x and y coordinates as measured on the plates, V, B, U, r, and comments.
- ID:
- ivo://CDS.VizieR/J/AJ/89/1707
- Title:
- Photographic observations of variable stars in M9
- Short Name:
- J/AJ/89/1707
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- New observations from the southern hemisphere have been used to check the periods for the 11 RR Lyrae variables in and around the globular cluster Messier 9. The periods were determined previously with data from northern observatories where M9 can only be observed over a small range in hour angle. Three of the eleven published periods were found to be in error. As a result of this, the mean period of the RRc variables has been revised from 0.279d to 0.341d, the mean period of the RRab variables has been revised from 0.614d to 0.621d,and a star previously believed to be an RR Lyrae has been reclassified as a Population II Cepheid. One of the RRc variables may be a double-mode pulsator. Another variable was studied, but the data were not sufficient for determining its period.
- ID:
- ivo://CDS.VizieR/J/MNRAS/239/459
- Title:
- Photographic study of A2197 and A2199
- Short Name:
- J/MNRAS/239/459
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Radii, b26 magnitudes, (b-r) colors, position angles, and ellipticities have been measured on the plates of Palomar 48-inch Schmidt telescope taken in May 1976, for 6925 galaxies in a 5-sq deg field enclosing the close pair of rich clusters A2197 and A2199.
- ID:
- ivo://CDS.VizieR/J/MNRAS/474/339
- Title:
- Photometric analysis of Abell 1689
- Short Name:
- J/MNRAS/474/339
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a photometric analysis of 65 galaxies in the rich cluster Abell 1689 at z=0.183, using the Hubble Space Telescope Advanced Camera for Surveys archive images in the rest-frame V band. We perform two-dimensional multicomponent photometric decomposition of each galaxy adopting different models of the surface-brightness distribution. We present an accurate morphological classification for each of the sample galaxies. For 50 early-type galaxies, we fit both a de Vaucouleurs law and a Sersic law; S0s are modelled by also including a disc component described by an exponential law. Bars of SB0s are described by the profile of a Ferrers ellipsoid. For the 15 spirals, we model a Sersic bulge, exponential disc and, when required, a Ferrers bar component. We derive the Fundamental Plane (FP) by fitting 40 early-type galaxies in the sample, using different surface-brightness distributions. We find that the tightest plane is that derived by Sersic bulges. We find that bulges of spirals lie on the same relation. The FP is better defined by the bulges alone rather than the entire galaxies. Comparison with local samples shows both an offset and rotation in the FP of Abell 1689.
- ID:
- ivo://CDS.VizieR/J/PASP/108/332
- Title:
- Photometric analysis of contact binaries
- Short Name:
- J/PASP/108/332
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present BV light-curve synthetic analyses of three short-period contact (W UMa) binaries: HY Pavonis (P=~0.35days), AW Virginis (P=~0.35days), and BP Velorum (P=~0.26days). Different possible configurations for wide range of the mass ratio were explored in each case making use of the Wilson-Devinney code. The photometric parameters of the systems were determined from the synthetic light-curve solutions that best fit the observations. AW Vir has two components of very similar temperatures and therefore the subtype (A or W) remains undetermined. HY Pav and BP Vel are best modeled by W-type configurations and the asymmetries in the light curves are reproduced by introducing cool spots on the more massive secondary components. Although BP Vel lies in the region of the open cluster Cr 173, its distance modulus, in principle, rules it out as a cluster member.
- ID:
- ivo://CDS.VizieR/J/A+A/374/968
- Title:
- Photometric and kinematic properties of LPVs
- Short Name:
- J/A+A/374/968
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The table gives individual absolute K and IRAS 12 and 25 luminosities of 800 LPVs. They are obtained by applying the Luri-Mennessier (LM, see below) calibration method to a sample composed of stars which are either of type M (O-rich), C (C-rich) or S (C/O~1), including Mira (M), SR (of both type a and b) and L variables. Astrometric data is taken exclusively from the HIPPARCOS Catalogue. Radial velocities are taken from the HIPPARCOS Input Catalogue. K band photometric data are gathered from various sources. Infrared magnitudes are derived from the fluxes measured by the IRAS satellite: m(12)=3.63-2.5log(F(12)) and m(25)=2.07-2.5log(F(25)) The stellar population from which the sample is extracted is assumed to be composed of several distinct groups that can differ in kinematics, luminosity or spatial distribution. The LM method determines the number of significant discriminating groups and produces, for each group, unbiased estimates of the mean parameters of the galactic and luminosity model. In a second step the method uses a Bayesian rule to statistically assign each star to a group. Table gives these assignations denoted as G(G') i.e. to group G in K and G'in IRAS. Three groups are identified in the K band. They can be interpreted as the galactic disk (D), old disk (OD) and extended disk (ED) populations. Four groups are identified in the IRAS bands. They are similar to those identified in the K band except that the old disk group is divided into ``bright'' (ODb) and ``faint'' (ODf) subgroups. Let us add that D, ODb and ED correspond to thick circumstellar envelope stars, while ODf is mainly composed of stars with a thin (or even lacking) envelope.
- ID:
- ivo://CDS.VizieR/J/A+AS/113/483
- Title:
- Photometric and radial velocity of RRLyr stars
- Short Name:
- J/A+AS/113/483
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Almost simultaneous measurements in the Geneva seven-colour photometric system and in radial velocities with the spectrometer CORAVEL for five RR Lyrae field stars were obtained in order to apply the Baade-Wesselink method to this kind of variable stars. In this paper the observational data on these stars are presented; the analysis of their physical parameters will be published in the forthcoming paper of the series.
- ID:
- ivo://CDS.VizieR/J/MNRAS/325/1002
- Title:
- Photometric and redshift catalog of 581 galaxies
- Short Name:
- J/MNRAS/325/1002
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- File table1 contains names, positions, b_jori_ magnitudes, magnitude errors, redshifts, redshift errors, [OII]3727 emission-line fluxes (where detected) and identification codes for 485 early-type galaxies displaying consistent data quality suitable for statistical analyses. File table2 contains names, positions, b_jori_ magnitudes, magnitude errors, redshifts and redshift errors for 96 early-type galaxies displaying inconsistent data quality, unsuitable for statistical analyses.
