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14861. STEREO non-magnetic chemically peculiar stars
ID:
ivo://CDS.VizieR/J/MNRAS/429/119
Title:
STEREO non-magnetic chemically peculiar stars
Short Name:
J/MNRAS/429/119
Date:
21 Oct 2021
Publisher:
CDS
Description:
We have analysed the photometric data obtained with the STEREO spacecraft for 558 non-magnetic chemically peculiar (CP) stars to search for rotational and pulsational variability. Applying the Lomb-Scargle and the phase dispersion minimization methods, we have detected photometric variability for 44 objects from which 35 were previously unknown. The new objects are all bright stars on the ecliptic plane (magnitude range 4.7<V<11.7) and will therefore be of great interest to studies of stellar structure and evolution. In particular, several show multiple signals consistent with hybrid {delta} Scuti and {gamma} Doradus pulsation, with different periodicities allowing very different regions of the stellar interior to be studied. There are two subgroups of stars in our sample: the cool metallic line Am (CP1) and the hot HgMn (CP3) stars. These objects fall well inside the classical instability strip where {delta} Scuti, {gamma} Doradus and slowly pulsating B-type stars are located. We also expect to find periods correlated to the orbital period for CP1 objects as they are mostly members of binary systems. For CP3 stars, rotationally induced variability is still a matter of debate. Although surface spots were detected, they are believed to produce only marginal photometric amplitudes. So, periods from several hours to a few days were expected for these two star groups. The STEREO/HI-1 data are well matched to studies of this frequency domain, owing to the cadence of approximately 40-min and multiple epochs over four and a half years. The remaining 514 stars are likely to be constant in the investigated range from 0.1 to 10d. In some cases, the presence of blending or systematic effects prevented us from detecting any reliable variability and in those cases we classified the star as constant. We discuss our results in comparison to already published ones and find a very good agreement. Finally, we have calibrated the variable stars in terms of the effective temperature and luminosity in order to estimate masses and ages. For this purpose, we used specifically developed calibrations for CP stars and, when available, Hipparcos parallaxes. All but two objects cover the stellar mass range from 1.5 to 5M_{sun}_ and are located between the zero- and terminal-age main sequence.
14862. STEREO observations of variable stars
ID:
ivo://CDS.VizieR/J/MNRAS/416/2477
Title:
STEREO observations of variable stars
Short Name:
J/MNRAS/416/2477
Date:
21 Oct 2021
Publisher:
CDS
Description:
The feasibility of using data from the NASA STEREO mission for variable star and asteroseismology studies has been examined. A data analysis pipeline has been developed that is able to apply selected algorithms to the entire database of nearly a million stars to search for signs of variability. An analysis limited to stars of magnitude 10.5 has been carried out, which has resulted in the extraction of 263 eclipsing binaries (EBs), of which 122 are not recorded as such in the SIMBAD online database. The characteristics of the STEREO observations are shown to be extremely well-suited to variable star studies with the ability to provide continuous phase coverage for extended periods as well as repeated visits that allow both short and long term variability to be observed. This will greatly inform studies of particular stars, such as the pre-cataclysmic variable V471 Tau, as well as entire classes of stars, including many forms of rotational variability. The high-precision photometry has also revealed a potentially substellar companion to a bright (R=7.5mag) nearby star (HD 213597), detected with 5 sigma significance. This would provide a significant contribution to exoplanet research if follow-up observations ascertain the mass to be within the planetary domain. Some particularly unusual EBs from the recovered sample are discussed, including a possible reclassification of a well-known star as an EB rather than a rotational variable (HR 7355) and several particularly eccentric systems, including very long-period EBs.
14863. Sternberg Astronomical Institute Catalog of Supernovae
ID:
ivo://nasa.heasarc/saisncat
Title:
Sternberg Astronomical Institute Catalog of Supernovae
Short Name:
SAISN
Date:
09 May 2025
Publisher:
NASA/GSFC HEASARC
Description:
This table comprises the Sternberg Astronomical Institute (SAI) Catalog of Supernovae. This version contains data on 2991 extragalactic supernovae (SNe) which were discovered from 1885 until December 12, 2004 and on their host galaxies. Data for host galaxies were compiled from the following catalogues: (1) RC3 (de Vaucouleurs et al. 1991, Cat. &lt;VII/155&gt;); (2) UGC (Nilson 1973. Cat. &lt;VII/26&gt;); (3) PGC (Paturel et al. 1989, Cat. &lt;VII/119&gt;); (4) MCG (Vorontsov-Velyaminov et al. 1962-1968, Cat. &lt;VII/62&gt;, &lt;VII/100&gt;); (5) ESO (Lauberts 1982, Cat. &lt;VII/34&gt;); (6) CfA (Huchra et al. 1994, see Cat &lt;VII/193&gt;), and (7) from van den Bergh (1994, Cat. &lt;J/ApJS/92/219&gt;). The main source of morphological types, major diameters and axial ratios was the RC3; the data from other sources were reduced to the system of RC3. Photographic magnitudes of galaxies were adopted from the UGC and the PGC together with individual data from the literature. The sources of recession velocities or cz values were the RC3, the CfA, the PGC and IAU Circulars. Position angles were taken from the RC3, UGC and the ESO catalogues, and inclination angles were mainly derived from data in RC3 according to Holmberg (1958MeLu2.136....1H). Some data for SNe and host galaxies were adopted from the GCVS (Samus et al. 1995, Cat. &lt;II/205&gt;). This table was created by the HEASARC in June 2005 based on CDS table II/256/sn.dat. Notice that the number of entries (2991) is more than the number of 2780 mentioned in the published reference: this is apparently due to the fact that the CDS table contains supernovae as recent as December 12, 2004, while the latter is complete only until January 6, 2004. This is a service provided by NASA HEASARC .
14864. Sternberg SN Catalogue, 1994Sep.
ID:
ivo://CDS.VizieR/II/201
Title:
Sternberg SN Catalogue, 1994Sep.
Short Name:
II/201
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a revised version of "Sternberg Astronomical Institute Supernova Catalogue" which includes data on 930 extragalactic supernovae (SNe) discovered up to September 1, 1994 and the main data on their parent galaxies. The description of previous version was presented by Tsvetkov and Bartunov (1993). The main improvements are the following: 1. The RC3 catalogue (de Vaucouleurs et al., 1991) was used instead of the RC2 as main source of data for parent galaxies. 2. For recent supernovae we included some magnitudes at maximum light from Hamuy et al. (1993) and compared our data with those of van den Bergh (1993). We also corrected some velocities of galaxies according to Huchra et al. (1994). 3. Some galaxy identifications from the MCG ( M ) were replaced by the ones from the PGC and the UGC. The identifications were adopted with this order of preference: NGC (IC) - UGC (ESO) - MCG - PGC - others 4. Photographic magnitudes from the PGC ( marked '*' ) and from IAU circulars ( marked 'C' ) were used when no other data were available. 5. Some errors were found in the previous version, and many new identifications for the galaxies previously listed as "ANON" were adopted. 6. We included several precise astrometric positions of SNe from Porter (1993).
14865. Sternberg Spectrophotometric Catalog
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.
14866. Sternberg Supernova Catalogue
ID:
ivo://CDS.VizieR/II/218
Title:
Sternberg Supernova Catalogue
Short Name:
II/218
Date:
21 Oct 2021
Publisher:
CDS
Description:
The catalogue presents the main data on 1362 extragalactic supernovae (SNe) discovered up to July 13, 1998 and on their parent galaxies. SNe are ordered by Right Ascension of their parent galaxies. Data for parent galaxies were compiled from the following catalogues: RC3 (de Vaucouleurs et al., 1991, Cat. <VII/155>); UGC (Nilson, 1973. Cat. <VII/26>); PGC (Paturel et al., 1989, Cat. <VII/119>); MCG (Vorontsov-Velyaminov et al., 1962-1968, Cat. <VII/62>, <VII/100>); ESO (Lauberts, 1982, Cat. <VII/34>); CfA (Huchra et al., 1994, see Cat <VII/193>), and from van den Bergh (1994, Cat. <J/ApJS/92/219>). Main source of morphological types, major diameters and axial ratios was the RC3; the data from other sources have been reduced to the system of RC3. Photographic magnitudes of galaxies were adopted from the UGC and the PGC together with individual data from the literature. The sources of recession velocities or cz values were the RC3, the CfA, the PGC and IAU Circulars. Position angles were taken from the RC3, UGC and the ESO catalogues, and inclination angles were mainly derived from data in RC3 according to Holmberg (1958MeLu2.136....1H). Some data for SNe and parent galaxies were adopted from GCVS (Samus et al., 1995, Cat. <II/205>)
14867. Sternberg Supernova Catalogue, 2004 version
ID:
ivo://CDS.VizieR/II/256
Title:
Sternberg Supernova Catalogue, 2004 version
Short Name:
II/256
Date:
21 Oct 2021
Publisher:
CDS
Description:
We describe the Sternberg Astronomical Institute (SAI) catalog of supernovae. We show that the radial distributions of type-Ia, type-Ibc and type-II supernovae differ in the central parts of spiral galaxies and are similar in their outer regions, while the radial distribution of type-Ia supernovae in elliptical galaxies differs that in spiral and lenticular galaxies. We give a list a supernovae that are farthest from the galactic centers, estimate their relative expulsion rate, and discuss their possible origins.
14868. Stern et al. (2001) BATSE Gamma-Ray Burst Catalog
ID:
ivo://nasa.heasarc/sterngrb
Title:
Stern et al. (2001) BATSE Gamma-Ray Burst Catalog
Short Name:
Stern
Date:
09 May 2025
Publisher:
NASA/GSFC HEASARC
Description:
The Stern et al. (2001) BATSE Gamma-Ray Burst (GRB) Catalog was constructed by scanning the archival BATSE daily records (DISCLA data) covering the entire 9.1 years of BATSE&#39;s operation. 3906 GRBs were detected, 2068 of which are previously known BATSE triggers while 1838 of them are new non-triggered bursts. All events were detected in the same kind of data with 1.024 seconds time resolution and were processed with the same procedure, and thus constitute a uniform sample. This scan lowers the BATSE detection threshold to ~0.1 photons/s/cm**2. This database table was created at the HEASARC in August 2001 using the file &lt;a href="ftp://ftp.astro.su.se/pub/head/grb/catalogs/etable2.txt"&gt;ftp://ftp.astro.su.se/pub/head/grb/catalogs/etable2.txt&lt;/a&gt; on the Stockholm Observatory ftp site. This is a service provided by NASA HEASARC .
14869. STIS emission-line galaxies observations
ID:
ivo://CDS.VizieR/J/ApJS/146/209
Title:
STIS emission-line galaxies observations
Short Name:
J/ApJS/146/209
Date:
21 Oct 2021
Publisher:
CDS
Description:
In the first 3 years of operation the Space Telescope Imaging Spectrograph (STIS) obtained slitless spectra of ~2500 fields in parallel to prime Hubble Space Telescope (HST) observations as part of the STIS parallel survey (SPS). The archive contains ~300 fields at high Galactic latitude (|b|>30{deg}) with spectroscopic exposure times greater than 3000s. This sample contains 219 fields (excluding special regions and requiring a consistent grating angle) observed between 1997 June 6 and 2000 September 21, with a total survey area of ~160-arcmin^2^. At this depth, the SPS detects an average of one emission-line galaxy per three fields. We present the analysis of these data and the identification of 131 low- to intermediate-redshift galaxies detected by optical emission lines. The sample contains 78 objects with emission lines that we infer to be redshifted [O II] {lambda}3727 emission at 0.43<z<1.7. The comoving number density of these objects is comparable to that of H{alpha}-emitting galaxies in the NICMOS parallel observations. One quasar and three probable Seyfert galaxies are detected. Many of the emission-line objects show morphologies suggestive of mergers or interactions. The reduced data are available upon request from the authors.
14870. STIS UV spectra of LMC planetary nebulae
ID:
ivo://CDS.VizieR/J/ApJ/622/294
Title:
STIS UV spectra of LMC planetary nebulae
Short Name:
J/ApJ/622/294
Date:
21 Oct 2021
Publisher:
CDS
Description:
We acquired spectra of 24 LMC planetary nebulae (PNs) in the 1150-3000{AA} range in order to determine carbon and other ionic abundances. The sample more than doubles the number of LMC PNs with high-quality UV spectra in this wavelength range and whose optical images are available in the Hubble Space Telescope archive. The Space Telescope Imaging Spectrograph was used with a very large aperture to obtain virtually slitless spectra; thus, the monochromatic images in the major nebula emission lines are also available. The analysis of the data shows extremely high quality spectra. This paper presents the emission lines identified and measured and the calculation of the ionic abundances of the emitting carbon and other ions, as well as total carbon abundance.

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