- ID:
- ivo://CDS.VizieR/J/MNRAS/328/1181
- Title:
- Extragalactic supernovae
- Short Name:
- J/MNRAS/328/1181
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- In order to investigate the influence of environment on supernova (SN) production, we have performed a statistical investigation of the SNe discovered in isolated galaxies, in pairs and in groups of galaxies. 22 SNe in 18 isolated galaxies, 48 SNe in 40 galaxy members of 37 pairs and 211 SNe in 170 galaxy members of 116 groups have been selected and studied.
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112. Faintest stars
- ID:
- ivo://CDS.VizieR/J/ApJ/414/279
- Title:
- Faintest stars
- Short Name:
- J/ApJ/414/279
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present infrared K-band photometry of complete samples of VLM candidates constructed from IIIaF and IVN plates in 10 fields taken as part of the POSSII and UKSRC surveys. Using the I-K colors constructed for these stars we estimate a bolometric luminosity function which extends to MBol=13.75. We find significant evidence for a luminosity function decreasing toward these luminosities.
- ID:
- ivo://CDS.VizieR/J/other/Ap/41.356
- Title:
- FBS 10th list of red stars
- Short Name:
- J/other/Ap/41.35
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- A 10th list of late-type M and C stars found on plates of the First Byurakan Spectral Sky Survey in the -11{deg}<{delta}<-7{deg} belt within area of about 1070{deg}^2^ is given. The list contains data on 169 red stars, 117 of which were found for the first time: 8 are new C stars, 3 are C-star candidates, 104 are M stars, 1 is either an M or an S star, and 1 object on the survey plate cannot be classified; of the 117 objects, 47 are unidentified IRAS sources. A statistical analysis of the objects that are and are not identified with IRAS sources shows that the identified stars are, with a high probability, brighter and have relatively more massive envelopes. Two stars were found to have fairly large brightness variability (with an amplitude of at least 6.0mag). Gas-dust shells are assumed to exist around nine of the IRAS sources. The equatorial coordinates, spectral types, and stellar magnitudes, determined on Palomar E maps, are given for the selected objects.
- ID:
- ivo://CDS.VizieR/J/other/PASA/18.232
- Title:
- FLAIR II spectroscopy of DENIS samples
- Short Name:
- J/other/PASA/18.
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- As a pilot survey for the forthcoming 6dF Galaxy Redshift Survey, spectroscopy of galaxies selected in the 1.2 micron J waveband with the DENIS imaging survey was performed at the UKST using the FLAIR II multi-object spectroscope. Sixty-nine galaxy redshifts were obtained in a high galactic latitude field and an additional 12 redshifts in a low galactic latitude (b=-17{deg}), obscured field. This spectroscopic follow-up of NIR selected galaxies illustrates the feasibility of obtaining redshifts with optical spectra on galaxies selected at much longer wavelengths. It validated a very preliminary algorithm for star/galaxy separation for high galactic latitude DENIS objects, with 99% reliability for J<13.9. The FLAIR II redshifts are in excellent agreement with those, previously published, of 20 common galaxies. However, the FLAIR II redshift determinations presented here required substantially longer integration times to achieve 90% completeness than expected from previous optical surveys at comparable depth. This is mainly due to a degradation in overall fibre throughput due to known problems with ageing of the prism- cement-fibre interface with exposure to UV light. In comparison to our high galactic latitude field, our low latitude (high extinction) field required 2.5 times more exposure time for less than 50% of successful redshift measurements. Among the J<=13.9 galaxies with measured redshifts, only 37+/-6% display emission lines, in comparison with 60% of emission line galaxies in optical samples of comparable depth. These galaxies are, on average, half a magnitude bluer in B-J than galaxies of the same luminosity without emission fines. We confirm a previous optically-based result that the fraction of galaxies with emission lines increases rapidly with decreasing galaxy luminosity. The J band luminosity function is estimated. Our high latitude field displays a concentration of galaxies at cz~=38000km/s suggesting a possible supercluster. A radial velocity is reported for a galaxy lying near the projected centre of the Abell 1434 cluster of galaxies, for which no cluster redshift is currently available.
- ID:
- ivo://CDS.VizieR/I/346
- Title:
- FON Astrographic Catalogue Southern Part (FONAC-S)
- Short Name:
- I/346
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The catalog of positions and B-magnitudes of stars and galaxies of the southern sky (from -20{deg} to +2{deg}) was created as a part of the FON (Russian abbreviation Photographic Sky Survey) project at the Ulugh Beg Astronomical Institute (UBAI) of the Uzbekistan Academy of Sciences. The data accumulated in the Photographic Archive of the UBAI were used. The total number of processed plates is 1963. Astronegatives were digitized with Epson Expression 10000XL scanners in the 1200 dpi scanning mode. The majority of plates have a size of 30x30cm. The catalog contains the data on 13 413 268 stars and galaxies with B<=17.5m at the epoch of 1984.97. The coordinates of stars and galaxies were obtained in the Tycho-2 reference system, and B-magnitudes were determined in the system of photoelectric standards. The mean internal errors of the catalog are {sigma}_RA,DE_=0.23" and {sigma}_B_=0.15mag for all objects or {sigma}_RA,DE_=0.085" and {sigma}_B_=0.054mag for the objects in the B=7-14mag range. The convergence between the catalog and Tycho-2 is characterized by the following values: 0.042" and 0.16m. The mean-square difference in coordinates from the catalog and from UCAC-4 is {sigma}_RA,DE_=0.26" (9 892 697 objects, or 73.75% of stars and galaxies, were identified).
- ID:
- ivo://CDS.VizieR/I/342
- Title:
- FON Astrographic Catalogue, Version 3.0
- Short Name:
- I/342
- Date:
- 05 Nov 2021
- Publisher:
- CDS
- Description:
- The catalog of equatorial coordinates {alpha} and {delta} and B-magnitudes of stars of the northern sky (from -4{deg} to +90{deg}) was created as a part of the FON project at the Main Astronomical Observatory of the National Academy of Sciences of Ukraine. The data accumulated in the Joint Digital Archive of the Ukrainian Virtual Observatory were used. The total number of processed plates is 2260. Astronegatives were digitized with Microtek ScanMaker 9800XL TMA and Epson Expression 10000XL scanners in the 1200 dpi scanning mode. The majority of plates have a size of 30x30cm (13000x13000-pixels). The catalog contains the data on 19451751 stars and galaxies with B<=16.5m at the epoch of 1988.1. The coordinates of stars and galaxies were obtained in the Tycho-2 reference system, and B-magnitudes were determined in the system of photoelectric standards. The mean internal errors of the catalog are {simag}_RA,DE_=0.23" and {sigma}_B_=0.14mag for all objects or {simag}_RA,DE_=0.10" and {sigma}_B_=0.07mag for stars in the B=7-14mag range. The convergence between the catalog and Tycho-2 is characterized by the following values: 0.06" and 0.15m. The mean-square difference in coordinates from the catalog and from UCAC-4 is {simag}_RA,DE_= 0.30" (18 742 932 objects, or 96.36% of stars and galaxies, were cross-identified).
- ID:
- ivo://CDS.VizieR/J/A+A/637/A62
- Title:
- Fornax3D. Planetary nebulae automated detection
- Short Name:
- J/A+A/637/A62
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Extragalactic Planetary Nebulae (PNe) are detectable via relatively strong nebulous [OIII] emission, acting as direct probes into the local stellar population. Due to an apparently universal, invariant magnitude cut-off, PNe are also considered to be a remarkable standard candle for distance estimation. Through detecting PNe within the galaxies, we aim to connect the relative abundances of PNe to the properties of their host galaxy stellar population. By removing the stellar background components from FCC 167 and FCC 219, we aim to produce PN Luminosity Functions (PNLF) of those galaxies, and therefore also estimate the distance modulus to those two systems. Finally, we test the reliability and robustness of the our novel detection and analysis method. It detects the presence of unresolved point sources via their [OIII] 5007{AA} emission, within regions previously unexplored. We model the [OIII] emissions in both the spatial and spectral dimensions together, as afforded to us by the Multi Unit Spectroscopic Explorer (MUSE) and drawing on data gathered as part of the Fornax3D survey. For each source, we inspect the properties of the nebular emission lines present to remove other sources, that could hinder the safe construction of the PNLF, such as supernova remnants and HII regions. As a further step, we characterise any potential limitations and draw conclusions about the reliability of our modelling approach via a set of simulations. Through the application of this novel detection and modelling approach to IFU observations, we report for both galaxies: distance estimates, luminosity specific PNe frequency values. Furthermore, we include an overview into source contamination, galaxy differences and how they may affect the PNe populations in the dense stellar environments.
- ID:
- ivo://CDS.VizieR/J/A+A/653/A167
- Title:
- Fornax3D PNe Catalogue
- Short Name:
- J/A+A/653/A167
- Date:
- 22 Feb 2022
- Publisher:
- CDS
- Description:
- Extragalactic planetary nebulae (PNe) offer a way to determine the distance to their host galaxies thanks to the nearly universal shape of the luminosity function (PNLF). Accurate PNe distance measurements rely on obtaining well- sampled PNLFs and the number of observed PNe scales with the encompassed stellar mass. This means either disposing of wide-field observations or on focusing on the bright central regions of galaxies. In this work we take this second approach and conduct a census of the PNe population in the central regions of galaxies in the Fornax cluster, using VLT/MUSE data for the early- type galaxies observed over the course of the Fornax3D survey. Using such integral-field spectroscopic observations to carefully separate the nebular emission from the stellar continuum, we isolate [OIII] 5007{AA} sources of interest, filter out unresolved impostor sources or kinematic outliers, and present a catalogue of 1350 unique PNe sources across 21 early- type galaxies, which includes their positions, [OIII} 5007{AA} line magnitudes and line-of-sight velocities. Using the PNe catalogued within each galaxy, we present independently-derived distance estimates based on the fit to the entire observed PNLF observed while carefully accounting for the PNe detection incompleteness. With these individual measurements we arrive at an average distance to the Fornax cluster itself of 19.86+/-0.32Mpc ({mu}_PNLF_=31.49+/-0.04mag). Our PNLF distance measurements agree well with previous distances based on surface brightness fluctuations, finding no significant systematic offsets between the two methods as otherwise reported in previous studies.
- ID:
- ivo://CDS.VizieR/J/ApJ/859/2
- Title:
- Fundamental stellar & halo data for local galaxies
- Short Name:
- J/ApJ/859/2
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We build templates of rotation curves as a function of the I-band luminosity via the mass modeling (by the sum of a thin exponential disk and a cored halo profile) of suitably normalized, stacked data from wide samples of local spiral galaxies. We then exploit such templates to determine fundamental stellar and halo properties for a sample of about 550 local disk-dominated galaxies with high-quality measurements of the optical radius R_opt_ and of the corresponding rotation velocity V_opt_. Specifically, we determine the stellar M_*_ and halo M_H_ masses, the halo size R_H_ and velocity scale V_H_, and the specific angular momenta of the stellar j_*_ and dark matter j_H_ components. We derive global scaling relationships involving such stellar and halo properties both for the individual galaxies in our sample and for their mean within bins; the latter are found to be in pleasing agreement with previous determinations by independent methods (e.g., abundance matching techniques, weak-lensing observations, and individual rotation curve modeling). Remarkably, the size of our sample and the robustness of our statistical approach allow us to attain an unprecedented level of precision over an extended range of mass and velocity scales, with 1{sigma} dispersion around the mean relationships of less than 0.1dex. We thus set new standard local relationships that must be reproduced by detailed physical models, which offer a basis for improving the subgrid recipes in numerical simulations, that provide a benchmark to gauge independent observations and check for systematics, and that constitute a basic step toward the future exploitation of the spiral galaxy population as a cosmological probe.
- ID:
- ivo://CDS.VizieR/J/PASP/121/634
- Title:
- FUSE observations in Magellanic Clouds
- Short Name:
- J/PASP/121/634
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present an atlas of stellar sight line data from the Far Ultraviolet Spectroscopic Explorer (FUSE) satellite for 287 stars in the Magellanic Clouds, obtained from eight years of satellite operations. The intent of our project is to make this rich ensemble data set accessible to a broad community of researchers in a standardized format that will enable easy identification of subsets of these data that are appropriate for pursuing specific science programs. We present the data in a standardized manner, showing key interstellar lines on a velocity scale, optical (MCELS) and infrared (Spitzer) sight line context images, and overview plots of the spectral region containing the OVI {lambda}{lambda}1032, 1038 doublet, and the entire 905-1187{AA} spectral range observed with FUSE. Objects with multiple observations have had their data summed to directly provide the highest signal-to-noise ratio available. These data are accessible online as a High Level Science Product through the Multimission Archive at Space Telescope (MAST). In this article, we describe the data sets and processing, the atlas materials, and the MAST interface in detail, and also provide examples of how to use these materials.
