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3641. STUDIES. II. NIR morphologies of submm galaxies
ID:
ivo://CDS.VizieR/J/ApJ/865/103
Title:
STUDIES. II. NIR morphologies of submm galaxies
Short Name:
J/ApJ/865/103
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present structural parameters and morphological properties of faint 450{mu}m selected submillimeter galaxies (SMGs) from the JCMT Large Program, STUDIES, in the COSMOS-CANDELS region. Their properties are compared to an 850{mu}m selected and a matched star-forming samples. We investigate stellar structures of 169 faint 450{mu}m sources (S_450_=2.8-29.6mJy; S/N>4) at z<3 using HST near-infrared observations. Based on our spectral energy distribution fitting, half of such faint SMGs (L_IR_=10^11.65^+/-0.98^L_{sun}_) lie above the star formation rate (SFR)/stellar mass plane. The size-mass relation shows that these SMGs are generally similar to less-luminous star-forming galaxies selected by NUV-r versus r-J colors. Because of the intrinsic luminosity of the sample, their rest-frame optical emission is less extended than the 850{mu}m sources (S_850_>2mJy) and more extended than the star-forming galaxies in the same redshift range. For the stellar mass and SFR-matched sample at z~1 and z~2, the size differences are marginal between faint SMGs and the matched galaxies. Moreover, faint SMGs have similar Sersic indices and projected axis ratios as star-forming galaxies with the same stellar mass and SFR. Both SMGs and the matched galaxies show high fractions (~70%) of disturbed features at z~2, and the fractions depend on the SFRs. These suggest that their star formation activity is related to galaxy merging and the stellar structures of SMGs are similar to those of star-forming galaxies. We show that the depths of submillimeter surveys are approaching the lower luminosity end of star-forming galaxies, allowing us to detect galaxies on the main sequence.
3642. Study of an eclipsing binary in M31
ID:
ivo://CDS.VizieR/J/A+A/509/A70
Title:
Study of an eclipsing binary in M31
Short Name:
J/A+A/509/A70
Date:
21 Oct 2021
Publisher:
CDS
Description:
The cosmic distance scale largely depends on distance determinations to galaxies of the Local Group. In this sense, the Andromeda galaxy (M31) is a key rung to better constrain the cosmic distance ladder. A project was started in 1999 to firmly establish a direct and accurate distance to M31 using eclipsing binaries (EBs). After the determination of the first direct distance to M31 from EBs, the second direct distance to an EB system is presented: M31V J00443610+4129194. Light and radial velocity curves were obtained and fitted to derive the masses and radii of the components. The acquired spectra were combined and disentangled to determine the temperature of the components. The analysis of the studied EB resulted in a distance determination to M31 of (m-M)0=24.30+/-0.11mag. This result, when combined with the previous distance determination to M31, results in a distance modulus of (m-M)0=24.36+/-0.08mag (744+/-33kpc), fully compatible with other distance determinations to M31. With an error of only project.
3643. Study of bars in 180 spiral galaxies
ID:
ivo://CDS.VizieR/J/ApJ/659/1176
Title:
Study of bars in 180 spiral galaxies
Short Name:
J/ApJ/659/1176
Date:
21 Oct 2021
Publisher:
CDS
Description:
Critical insights on galaxy evolution stem from the study of bars. With the advent of HST surveys that trace bars in the rest-frame optical out to z~1, it is critical to provide a reference baseline for bars at z~0 in the optical band. We present results on bars at z~0 in the optical and NIR based on 180 spirals from OSUBSGS (Eskridge et al., 2002, Cat. J/ApJS/143/73).
3644. Study of hot stellar systems and galaxies
ID:
ivo://CDS.VizieR/J/MNRAS/414/3699
Title:
Study of hot stellar systems and galaxies
Short Name:
J/MNRAS/414/3699
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a complete picture of dynamically hot stellar systems, ranging from faint galaxies and star clusters of only a few hundred solar masses up to giant elliptical galaxies, in particular including large samples of compact elliptical galaxies (cEs), ultra-compact dwarf galaxies (UCDs), dwarf elliptical galaxies (dEs) of nearby galaxy clusters, and Local Group ultra-faint dwarf spheroidal galaxies (dSphs). For all those stellar systems we show the effective radius-luminosity, effective radius-stellar mass, and effective mass surface density-stellar mass plane.
3645. Study of 230 IRAS-FSC galaxies
ID:
ivo://CDS.VizieR/J/other/Ap/54.147
Title:
Study of 230 IRAS-FSC galaxies
Short Name:
J/other/Ap/54.14
Date:
21 Oct 2021
Publisher:
CDS
Description:
From the cross-correlation of the IRAS FSC catalog with the radio FIRST catalog, 230 infrared galaxies were selected having optical classifications and redshifts from SDSS and NED. To understand the nature of these objects we have compared them with a sample of bright ULIRGs with fluxes f>1Jy at 60-micron and with 14 optically faint IRAS FSC galaxies, showing that IRAS galaxies are not always strong infrared sources. We also have calibrated Star Formation Rates based on luminosities of the PAH feature at 7.7-micron and 1.4GHz radio flux densities, which confirmed the consistency between these two SFRs. We have estimated the extinction for our 230 objects using SFRs calibrated from the PAH feature compared to ultraviolet flux, which shows that only 1% of the ultraviolet continuum typically escapes extinction by dust within a starburst. As our 230 galaxies have no spectra available from Spitzer Space Telescope (SST) archive, to estimate the infrared flux at 7.7 (for SB galaxies) or 8.0 (for AGN and composite) micron, we have used the median ratios of the IRAS fluxes at 25-micron to fluxes at 7.7 or 8.0-micron estimated for each 41.0<logL(IR)<41.9, 42.0<logL(IR)<42.9, 43.0<logL(IR)<43.9, 44.0<logL(IR)<44.9, and 45.0<logL(IR)<45.9 luminosity bins, using objects having spectra from SST archive.
3646. Study of PGC-54-like galaxies
ID:
ivo://CDS.VizieR/J/other/ChA+A/34.367
Title:
Study of PGC-54-like galaxies
Short Name:
J/other/ChA+A/34
Date:
21 Oct 2021
Publisher:
CDS
Description:
With the improved Peng's method, we have made the image processing and spiral arm fitting of the newly released spiral galactic images of Sloan Digital Sky Survey (SDSS), and obtained the equivalent thicknesses of galactic disks, as well as the tangential angles of spiral arms of 73 spiral galaxies. These physical quantities are very important for future studies on the properties of spiral galaxies.
3647. Subarcsecond mid-infrared atlas of local AGN
ID:
ivo://CDS.VizieR/J/MNRAS/439/1648
Title:
Subarcsecond mid-infrared atlas of local AGN
Short Name:
J/MNRAS/439/1648
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present the first subarcsecond-resolution mid-infrared (MIR) atlas of local active galactic nuclei (AGN). Our atlas contains 253 AGN with a median redshift of z=0.016, and includes all publicly available MIR imaging performed to date with ground-based 8-m class telescopes, a total of 895 independent measurements. Of these, more than 60% are published here for the first time. We detect extended nuclear emission in at least 21% of the objects, while another 19% appear clearly point-like, and the remaining objects cannot be constrained. Where present, elongated nuclear emission aligns with the ionization cones in Seyferts. Subarcsecond resolution allows us to isolate the AGN emission on scales of a few tens of parsecs and to obtain nuclear photometry in multiple filters for the objects. Median spectral energy distributions (SEDs) for the different optical AGN types are constructed and individual MIR 12 and 18um continuum luminosities are computed. These range over more than six orders of magnitude. In comparison to the arcsecond-scale MIR emission as probed by Spitzer, the continuum emission is much lower on subarcsecond scales in many cases. The silicate feature strength is similar on both scales and generally appears in emission (absorption) in type I (II) AGN. However, the polycyclic aromatic hydrocarbon emission appears weaker or absent on subarcsecond scales. The differences of the MIR SEDs on both scales are particularly large for AGN/starburst composites and close-by (and weak) AGN. The nucleus dominates over the total emission of the galaxy only at luminosities >~10^44^erg/s. The AGN MIR atlas is well suited not only for detailed investigation of individual sources but also for statistical studies of AGN unification.
3648. Subaru Suprime-Cam data service
ID:
ivo://jvo/subaru/spcam
Title:
Subaru Suprime-Cam data service
Short Name:
SUBARU_SUP
Date:
04 Nov 2020 06:00:31
Publisher:
JVO
Description:
The Subaru Prime Focus Camera (Suprime-Cam) is a mosaic of ten 2048 x 4096 CCDs, located at the prime focus of Subaru Telescope, which covers a 34' x 27' field of view with a pixel scale of 0.20''. This service provides access to the JVO Subaru Suprime-Cam mosaic image archive. The purpose of this archive is to provide quick look images taken by Subaru/Suprime-Cam. Those images were processed by a pipeline developed by JVO.
3649. Subaru-UDGs in the Coma cluster
ID:
ivo://CDS.VizieR/J/ApJS/225/11
Title:
Subaru-UDGs in the Coma cluster
Short Name:
J/ApJS/225/11
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a catalog of ultra-diffuse galaxies (UDGs) in the Coma cluster. UDGs are a subset of low surface brightness (SB) galaxies with very large effective radii defined by van Dokkum et al. (2015ApJ...798L..45V). We surveyed the Subaru data archive for deep Suprime-Cam/Subaru R-band images, and used data covering the 1.7x2.7{deg} region of the Coma cluster. The data are ~1 magnitude deeper than the data of van Dokkum et al. in limiting SB. This paper explains the details of our sample selection procedure. This UDG catalog includes positions, magnitudes, effective radii, mean and central SBs, and colors (when available). Comparisons with previous galaxy catalogs in the literature are performed, and we show that the current catalog is the largest for UDGs. We also discuss that most of the UDGs are members of the Coma cluster, and the major axis of the UDGs tends to align toward the cluster center (radial alignment).
3650. Subaru/XMM-Newton deep survey (SXDS). II.
ID:
ivo://CDS.VizieR/J/ApJS/176/1
Title:
Subaru/XMM-Newton deep survey (SXDS). II.
Short Name:
J/ApJS/176/1
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present multi-wave band optical imaging data obtained from observations of the Subaru/XMM-Newton Deep Survey (SXDS). The survey field, centered at RA=02:18:00, DE=-05:00:00, has been the focus of a wide range of multiwavelength observing programs spanning from X-ray to radio wavelengths. A large part of the optical imaging observations are carried out with Suprime-Cam on Subaru Telescope at Mauna Kea in the course of Subaru Telescope "Observatory Projects".

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