- ID:
- ivo://CDS.VizieR/III/124
- Title:
- Spectrophotometry of 60 stars
- Short Name:
- III/124
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Spectral energy distributions were photoelectrically measured from 320 to 860 nm with a resolution of 1 nm in equidistant steps of 1 nm for 60 bright southern and equatorial stars of intermediate and late spectral types for all luminosity classes. Flux curves for individual stars are plotted with a resolution of 1 nm and tabulated in steps of 5 nm. Typical internal mean errors of fluxes measured in different nights are less than 0.02mag in the spectral range from 400 nm to 860 nm, and rise to a maximum of about 0.05mag for wavelengths below 400 nm.
Number of results to display per page
Search Results
- ID:
- ivo://CDS.VizieR/J/AN/320/105
- Title:
- Spectrophotometry of 26 supergiants in the LMC
- Short Name:
- J/AN/320/105
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- New spectrophotometric data for 3 galactic and 23 LMC F to G supergiants are presented. The wavelength range of the spectra is 3400 to 6400{AA}, the resolution about 10{AA}. The mean transformational error of the fluxes is 0.03mag. The S/N ratio is about 100 and 30 for galactic and LMC stars, respectively. Details about the reduction one may found in Oestreicher & Schmidt-Kaler (1998MNRAS.299..625O) and Malyuto et al. (1997MNRAS.286..500M). The fluxes are given in magnitudes according to the system of Hayes & Latham (1975ApJ...197..593H). For each star an ASCII file is given with the name of the first identifier. In the first column the wavelength, in the second column the flux is given.
- ID:
- ivo://CDS.VizieR/J/PAZh/32/672
- Title:
- Spectrophotometry of 77 variable stars
- Short Name:
- J/PAZh/32/672
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The results of visual and near-infrared spectrophotometric observations for 77 variable stars obtained during 1971-1991 in Chile, Armenia and Bolivia. The quasi-monochromatic extra-atmospheric fluxes from the stars are given in absolute energy units (W/m^2^/m) at all wavelengths of the spectral range at 2.5 nm intervals.
- ID:
- ivo://CDS.VizieR/III/143
- Title:
- Spectrophotometry of Wolf-Rayet Stars
- Short Name:
- III/143
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The catalog contains spectrophotometry at approximately 10-Angstrom resolution for 173 southern Wolf-Rayet stars. All observations were made at the Cerro Tololo Inter-American Observatory between November 1981 and February 1985 with SIT-vidicon detector. The catalog includes synthetic photometry, and fluxes in the range 3400-7300 Angstroms for most known Wolf-Rayet stars in the Large Magellanic Cloud and in the range 3400-4700 Angstroms for all known Wolf-Rayet stars in the Small Magellanic Cloud.
- ID:
- ivo://CDS.VizieR/J/A+A/595/A10
- Title:
- Spectroscopic mapping of supernova remnant N49
- Short Name:
- J/A+A/595/A10
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Physical conditions inside a supernova remnant can vary significantly between different positions. However, typical observational data of supernova remnants are integrated data or contemplate specific portions of the remnant. We study the spatial variation in the physical properties of the N49 supernova remnant based on a spectroscopic mapping of the whole nebula. Long-slit spectra were obtained with the slit (~4'x1.03") aligned along the east-west direction from 29 different positions spaced by 2" in declination. A total of 3248 1D spectra were extracted from sections of 2" of the 2D spectra. More than 60 emission lines in the range 3550{AA} to 8920{AA} were measured in these spectra. Maps of the fluxes and of intensity ratios of these emission lines were built with a spatial resolution of 2"x2".
- ID:
- ivo://CDS.VizieR/J/PAZh/32/628
- Title:
- Spectroscopic observations of southern stars
- Short Name:
- J/PAZh/32/628
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The results of spectrophotometric observations of 64 southern stars in the range from 320 to 730nm are presented as quasi-monochromatic luminosities from the stars on the external board of atmosphere expressed in the absolute energy units (W/m^2^/m) with spectral interval of 2.5nm.
- ID:
- ivo://CDS.VizieR/J/AJ/98/1305
- Title:
- Stellar content of NGC 346
- Short Name:
- J/AJ/98/1305
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Using CCD UBV photometry and spectroscopy, we have investigated the stellar content of NGC 346, the brightest H II region in the SMC. Spectra of 42 stars confirm that 33 are of O type, of which 11 are of type O6.5 or earlier; this is as many early-type O stars as is known in the rest of the SMC. From the spectroscopy and photometry we are able to construct an H-R diagram which is essentially complete down to ~10M_{sun}_. We find an initial mass-function slope {GAMMA}=-1.9, similar to that found for massive stars near the Sun and in the LMC: the presence of six stars in the mass range 40-85M_{sun}_ suggests that the upper-mass limit of the IMF is also not appreciably lower in the SMC than it is in the Galaxy. Our photometry has identified five probable red supergiants of which one was previously known. These stars, plus two B supergiants, are evolved stars of considerably lower mass (15M_{sun}_) than many of the unevolved cluster members. Most of these lower-mass, evolved stars form a spatially distinct subgroup; we believe that NGC 346 thus provides an example of sequential star formation in the SMC. We also have identified a background field population of 5M_{sun}_ stars. We find that the ionizing flux from the hot stars is consistent with the previously known Half nebular luminosity. Finally, we discuss the enigmatic W-R binary HD 5980, which our point-spread-function fitting has identified as a close visual double.
- ID:
- ivo://CDS.VizieR/III/88
- Title:
- Stellar Spectrophotometric Atlas
- Short Name:
- III/88
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The data were obtained with the Oke multichannel scanner on the 5-meter Hale reflector for purposes of synthetizing galaxy spectra, and the digitized atlas contains normalized spectral energy distributions, computed colors, scan line and continuum indices for 175 selected stars covering the complete ranges of spectral type and luminosity class.
- ID:
- ivo://CDS.VizieR/III/89
- Title:
- Stellar Spectrophotometry
- Short Name:
- III/89
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The catalog is a collection of spectrophotometric measurements obtained with rotating grating scanners attached to various telescopes at the Kitt Peak National, Mount Wilson, and Palomar Observatories. The observations were made during the 1970s and early 1980s, both individually and jointly, by S.J. Adelman, D.M. Pyper, S.N. Shore, and R.E. White. All measurements were calibrated with the fluxes of Alpha Lyrae (Vega) as presented by Hayes and Latham (1975ApJ...197..593H). There are 1134 observations concerning 207 individual stars.
- ID:
- ivo://CDS.VizieR/III/208
- Title:
- Sternberg Spectrophotometric Catalog
- Short Name:
- III/208
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This catalogue contains the energy distribution data of 866 stars of different spectral type and luminosity classes in the range 3225-7625{AA} with the step 50{AA}. The observations were made at the Crimean Station of the Sternberg Astronomical Institute during 1970-1984 using spectrophotometer installed at the 48-cm and 60-cm Zeiss reflectors. Standards are Beta Ari, Gamma Ori, Beta Tau, Alfa Leo, Eta UMa, Alfa Lyr, Alfa Aql and Alfa Peg. Energy distribution data in the spectra of standard Stars are based on the calibration of Vega published by Hayes (1985IAUS..111..225H). The average accuracy of the catalogue data is 3.2%. Monochromatic fluxes are in erg/(cm^2^.s.cm*10^-6^). Zero flux is expressed as E-12.
