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3441. CSI2264 Spitzer Light Curve Table
ID:
ivo://irsa.ipac/Spitzer/Catalog/CSI2264/CSI2264_Spitzer_LC
Title:
CSI2264 Spitzer Light Curve Table
Short Name:
CSI2264SpitzerLC
Date:
01 Oct 2018 20:27:17
Publisher:
NASA/IPAC Infrared Science Archive
Description:
The CSI 2264 project performed photometric monitoring of young NGC 2264 cluster members using the Spitzer Infrared Array Camera (IRAC; Fazio et al. 2004) and the Convection, Rotation and Planetary Transits satellite (CoRoT; Baglin et al. 2006) simultaneously. Thirteen other telescopes monitored the region at different times concurrently with (or closely in time to) the primary Spitzer and CoRoT joint campaign. The CSI 2264 project is described in detail in Cody et al. (2014). This table contains Spitzer light curves for objects that are very likely NGC 2264 members (using the criteria described in Cody et al. 2014), and that have at least 15 good data points in one of the IRAC bands. Only data from Warm Spitzer cycle 8 program 80040 (Dec. 2011- Jan. 2012) are provided. There are many rows for each object, because each object has many epochs of data. Columns 11, 12, and 13 (the IRAC excess flag and the light curve types) are duplications of information found in our first table, but are repeated here to make it easy for users to, e.g., pull out all of the light curves of a specific type.
3442. CSP-I photometry for 34 supernovae
ID:
ivo://CDS.VizieR/J/A+A/609/A134
Title:
CSP-I photometry for 34 supernovae
Short Name:
J/A+A/609/A134
Date:
21 Oct 2021
Publisher:
CDS
Description:
The first phase of the Carnegie Supernova Project (CSP-I) was a dedicated supernova follow-up program based at the Las Campanas Observatory that collected science data of young, low-redshift supernovae between 2004 and 2009. Presented in this paper is the CSP-I photometric data release of low-redshift stripped-envelope core-collapse supernovae. The data consist of optical (uBgV ri) photometry of 34 objects, with a subset of 26 having near-infrared (YJH) photometry. Twenty objects have optical pre-maximum coverage with a subset of 12 beginning at least five days prior to the epoch of B-band maximum brightness. In the near-infrared, 17 objects have pre-maximum observations with a subset of 14 beginning at least five days prior to the epoch of J-band maximum brightness. Analysis of this photometric data release is presented in companion papers focusing on techniques to estimate host-galaxy extinction (Stritzinger et al., submitted) and the light-curve and progenitor star properties of the sample (Taddia et al., submitted). The analysis of an accompanying visual-wavelength spectroscopy sample of ~150 spectra will be the subject of a future paper.
3443. CSS detached eclipsing binaries
ID:
ivo://CDS.VizieR/J/MNRAS/454/2946
Title:
CSS detached eclipsing binaries
Short Name:
J/MNRAS/454/2946
Date:
21 Oct 2021
Publisher:
CDS
Description:
Eclipsing binaries play pivotal roles in our understanding of stellar properties. In the era of all-sky surveys, thousands of eclipsing binaries have been charted, yet their light curves remain unexplored. The goal of this work is to use time series and colour information to extract physical parameters of the binary systems when the spectroscopic information is not available. Inspired by the work of Devor et al., we use the Detached Eclipsing Binary Light curve fitter (DEBiL) and the Method for Eclipsing Component Identification (MECI) to derive basic properties of the binary systems identified by the Catalina Sky Surveys. We derive the mass, fractional radius, and age for 2170 binary systems. We report 211 eccentric systems and compare their properties to the tidal circularization theory. From the mass estimate, we present a subsample of low-mass M-dwarfs which warrant further follow-up to test the stellar models at the low-mass regime. With MECI, we are able to estimate the distance to individual eclipsing binary system and use them to probe the large-scale structure of the Milky Way. We demonstrate that DEBiL and MECI are instrumental to investigate eclipsing binary light curves in the era of all-sky surveys, and provide estimates of stellar parameters when the spectroscopic information is not available.
3444. CSS/GPS radio sources VLA observations
ID:
ivo://CDS.VizieR/J/A+A/369/380
Title:
CSS/GPS radio sources VLA observations
Short Name:
J/A+A/369/380
Date:
21 Oct 2021
Publisher:
CDS
Description:
A sample of 98 Compact Steep-Spectrum and GHz-Peaked Spectrum (CSS-GPS) candidates from the B3-VLA sample has been observed with the VLA (A configuration) at 8.5, 4.9 and 1.5 GHz, with resolutions of 0.2, 0.4 and 1.4 arcsec, in total intensity and polarization. Source positions, flux densities, polarization parameters, angular sizes and spectral information are reported for the confirmed CSS (Table 3) and the non-CSS (Table 3bis) sources.
3445. CSS Periodic Variable Star Catalogue
ID:
ivo://CDS.VizieR/J/MNRAS/469/3688
Title:
CSS Periodic Variable Star Catalogue
Short Name:
J/MNRAS/469/3688
Date:
21 Oct 2021
Publisher:
CDS
Description:
Here we present the results from our analysis of six years of optical photometry taken by the Siding Spring Survey (SSS). This completes a search for periodic variable stars within the 30,000 square degrees of the sky covered by the Catalina Surveys. The current analysis covers 81 million sources with declinations between -20 and -75 degrees with median magnitudes in the range 11<V<19.5. We find approximately 34,000 new periodic variable stars in addition to the ~9,000 RR Lyrae that we previously discovered in SSS data. This brings the total number of periodic variables identified in Catalina data to ~110,000. The new SSS periodic variable stars mainly consist of eclipsing binaries, RR Lyrae, LPVs, RS CVn stars, {delta} Scutis and Anomalous Cepheids. By cross-matching these variable stars with those from prior surveys, we find that ~90% of the sources are new discoveries and recover ~95% of the known periodic variables in the survey region. For the known sources, we find excellent agreement between our catalogue and prior values of luminosity, period and amplitude. However, we find many variable stars that had previously been misclassified. Examining the distribution of RR Lyrae, we find a population associated with the Large Magellanic Cloud (LMC) that extends more than 20 degrees from its center confirming recent evidence for the existence of a very extended stellar halo in the LMC. By combining SSS photometry with Dark Energy Survey data, we identify additional LMC halo RR Lyrae, thus confirming the significance of the population.
3446. CSTAR CATALOG CONESEARCH
ID:
ivo://cvo.naoc/data/cstar/conesearch
Title:
CSTAR CATALOG CONESEARCH
Short Name:
CSTAR.CS
Date:
29 Oct 2020 14:34:46
Publisher:
China-VO
Description:
In 2008 January the 24th Chinese expedition team successfully deployed the Chinese Small Telescope ARray (CSTAR) to DomeA, the highest point on the Antarctic plateau. CSTAR consists of four 14.5cm optical telescopes, each with a different filter (g, r, i and open) and has a 4.5degree x 4.5degree field of view (FOV). It operates robotically as part of the Plateau Observatory, PLATO, with each telescope taking an image every 30 seconds throughout the year whenever it is dark. During 2008, CSTAR #1 performed almost flawlessly, acquiring more than 0.3 million i-band images for a total integration time of 1728 hours during 158 days of observations. For each image taken under good sky conditions, more than 10,000 sources down to 16 mag could be detected. We performed aperture photometry on all the sources in the field to create the catalog described herein. Since CSTAR has a fixed pointing centered on the South Celestial Pole (Dec =-90 degree), all the sources within the FOV of CSTAR were monitored continuously for several months. The photometric catalog can be used for studying any variability in these sources, and for the discovery of transient sources such as supernovae, gamma-ray bursts and minor planets.
3447. C star population in NGC 6822
ID:
ivo://CDS.VizieR/J/AJ/123/832
Title:
C star population in NGC 6822
Short Name:
J/AJ/123/832
Date:
21 Oct 2021
Publisher:
CDS
Description:
Using the CFH12K camera, we apply the four-band photometric technique to identify 904 carbon stars in an area 28'x42' centered on NGC 6822. A few C stars outside of this area were also discovered with the Las Campanas Swope Telescope. The NGC 6822 survey employs two sets of observations obtained by rather different telescopes and with different procedures: the Swope Telescope on Las Campanas was used in 1999 October to secure images of NGC 6822 in Kron-Cousins R_KC_, CN (810nm), and TiO (770nm) filters. The 2048x2048 SITe No. 1 CCD yields a field of view of 23.7'x23.7'; NGC 6822 was also observed with the CFH12K at the beginning of one night in 2000 September. The camera consists of a 12Kx8K pixel mosaic covering a field of 42'x28', with each pixel corresponding to 0.206". Images were obtained through Mould I and R filters and through the CN and TiO filters. The NGC 6822 C star population has <I>=19.26 leading to an <M_I_>=-4.70, value essentially identical to the mean magnitude obtained for the C stars in IC 1613. Contrary to stars highlighting the optical image of NGC 6822, C stars are seen at large radial distances and trace a huge, slightly elliptical halo, which does not coincide with the huge H I cloud surrounding NGC 6822. The previously unknown stellar component of NGC 6822 has a exponential scale length of 3.0+/-0.1' and can be traced to 5 scale lengths. The C/M ratio of NGC 6822 is evaluated to be 1.0+/-0.2.
3448. C star population in outer disk of M31
ID:
ivo://CDS.VizieR/J/A+A/436/91
Title:
C star population in outer disk of M31
Short Name:
J/A+A/436/91
Date:
21 Oct 2021
Publisher:
CDS
Description:
We employ the CFHT Megacam camera to survey ~1{deg}^2^ of the southern outer disc of M31, a region which includes the area where Battinelli et al. (2003, Cat. <J/AJ/125/1298>) have identified nearly one thousand C stars. In the outer M31 region not previously surveyed, we identify 361 new C star candidates, having similar photometric properties to the known ones, and confirm the slight decrease in the luminosity of C stars with galactocentric distances. We show that the Sloan g', r', i' filters are a viable approach, comparable to (CN-TiO), to identify C stars. We find that the (g'-r') colours of cool C stars can be so red that prohibitively long g' exposures are needed to acquire faint extragalactic C stars. This makes the Sloan filters a less promising approach to extend a C star survey to several Mpc. Our uniform large field survey detects the edge of M31 disk at ~35kpc. The intermediate-age population, represented by C stars, extends further to ~40kpc.
3449. C star population in outer disk of M31
ID:
ivo://CDS.VizieR/J/AJ/125/1298
Title:
C star population in outer disk of M31
Short Name:
J/AJ/125/1298
Date:
21 Oct 2021
Publisher:
CDS
Description:
We employ the CFH12K mosaic to identify carbon stars, using the R, I, CN, and TiO photometric technique, in a 2240 arcmin2 area, ranging from 17 to 30kpc of the southwest disk of M31, barely reaching the edge of the observed H I disk. We found 945 C stars with <I_0_>=19.94mag and {sigma}=0.47. The surface density of C stars along the major axis of M31 follows an exponential profile with a scale length of 4.85+/-0.35kpc, in agreement with adopted values for the scale length of the disk population. Our survey partially overlaps with the recently discovered G1 density enhancement by Ferguson et al. We confirm that no AGB star excess is detectable in the surveyed part of the clump. The C/M ratio, along the major axis, is derived over a distance range of 7kpc. The strong C/M gradient seen contrasts with results of previous studies of the C stars in M31.
3450. C stars in IC 1613
ID:
ivo://CDS.VizieR/J/AJ/119/2780
Title:
C stars in IC 1613
Short Name:
J/AJ/119/2780
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present results of a multifilter survey of the whole Magellanic-type galaxy IC 1613. Narrowband CN and TiO filters are used to identify carbon stars among red giants. We have identified 195 carbon stars, extending up to 15' from the center of the galaxy. We present well-calibrated R and I magnitudes for all stars. The large field surveyed allows a reliable foreground estimate of M stars, leading to a C/M ratio of 0.64, when giants as early as M0 are counted. Analysis of the photometric properties of the C star population reveals a narrow M_I_ distribution with a mean M_I_ of -4.69mag, with a dispersion of +/-0.28. IC 1613 has, for its absolute magnitude, a normal number of C stars.

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