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1781. SpeX NIR survey of 886 nearby M dwarfs
ID:
ivo://CDS.VizieR/J/ApJS/220/16
Title:
SpeX NIR survey of 886 nearby M dwarfs
Short Name:
J/ApJS/220/16
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a catalog of near-infrared (NIR) spectra and associated measurements for 886 nearby M dwarfs. The spectra were obtained with the NASA-Infrared Telescope Facility SpeX Spectrograph during a two-year observing campaign; they have high signal-to-noise ratios (S/N>100-150), span 0.8-2.4{mu}m, and have R~2000. Our catalog of measured values contains useful T_eff_ and composition-sensitive features, empirical stellar parameter measurements, and kinematic, photometric, and astrometric properties compiled from the literature. We focus on measurements of M dwarf abundances ([Fe/H] and [M/H]), capitalizing on the precision of recently published empirical NIR spectroscopic calibrations. We explore systematic differences between different abundance calibrations, and from other similar M dwarf catalogs. We confirm that the M dwarf abundances we measure show the expected inverse dependence with kinematic-, activity-, and color-based age indicators. Finally, we provide updated [Fe/H] and [M/H] for 16 M dwarf planet hosts. This catalog represents the largest published compilation of NIR spectra and associated parameters for M dwarfs. It provides a rich and uniform resource for nearby M dwarfs, and will be especially valuable for measuring Habitable Zone locations and comparative abundances of the M dwarf planet hosts that will be uncovered by upcoming exoplanet surveys.
1782. SPICES II: CHANDRA observations of Lynx
ID:
ivo://CDS.VizieR/J/AJ/123/2223
Title:
SPICES II: CHANDRA observations of Lynx
Short Name:
J/AJ/123/2223
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present our first results on field X-ray sources detected in a deep, 184.7ks observation with the Advanced CCD Imaging Spectrometer (ACIS-I) on the Chandra X-Ray Observatory. The observations target the Lynx field (RA=08h48min, DE=+44{deg}54') of SPICES, the Spectroscopic Photometric Infrared-Chosen Extragalactic Survey, which contains three known X-ray-emitting clusters at redshifts of z=0.57, 1.26, and 1.27. Not including the known clusters, in the 17'x17' ACIS-I field we detect 132 sources in the 0.5-2keV (soft) X-ray band down to a limiting flux of ~1.7x10^-16^ergs/cm^2^/s and 11 sources in the 2-10keV (hard) X-ray band down to a limiting flux of ~1.3x10^-15^ergs/cm^2^/s. The combined catalog contains a total of 153 sources, of which 42 are detected only in the soft band and 21 are detected only in the hard band. Confirming previous Chandra results, we find that the fainter sources have harder X-ray spectra, providing a consistent solution to the long-standing "spectral paradox." From deep optical and near-infrared follow-up data, 77% of the X-ray sources have optical counterparts to I=24, and 71% of the X-ray sources have near-infrared counterparts to Ks=20. Four of the 24 sources in the near-IR field are associated with extremely red objects (EROs; I-Ks>=4). We have obtained spectroscopic redshifts with the Keck telescopes of 18 of the Lynx Chandra sources. These sources comprise a mix of broad-lined active galaxies, apparently normal galaxies, and two late-type Galactic dwarfs. Intriguingly, one Galactic source is identified with an M7 dwarf exhibiting nontransient, hard X-ray emission. Thirteen of the Chandra sources are located within regions for which we have Hubble Space Telescope imaging. Nine of the sources are detected, showing a range of morphologies: several show compact cores embedded within diffuse emission, while others are spatially extended showing typical galaxy morphologies. Two of the Chandra sources in this subsample appear to be associated with mergers. We briefly review non-active galactic nucleus mechanisms to produce X-ray emission and discuss properties of the Lynx Chandra sample in relation to other samples of X-ray and non-X-ray sources.
1783. SpIES: the Spitzer IRAC Equatorial Survey
ID:
ivo://CDS.VizieR/J/ApJS/225/1
Title:
SpIES: the Spitzer IRAC Equatorial Survey
Short Name:
J/ApJS/225/1
Date:
21 Oct 2021
Publisher:
CDS
Description:
We describe the first data release from the Spitzer-IRAC Equatorial Survey (SpIES); a large-area survey of ~115deg^2^ in the Equatorial SDSS Stripe 82 field using Spitzer during its "warm" mission phase. SpIES was designed to probe sufficient volume to perform measurements of quasar clustering and the luminosity function at z>=3 to test various models for "feedback" from active galactic nuclei (AGNs). Additionally, the wide range of available multi-wavelength, multi-epoch ancillary data enables SpIES to identify both high-redshift (z>=5) quasars as well as obscured quasars missed by optical surveys. SpIES achieves 5{sigma} depths of 6.13uJy (21.93 AB magnitude) and 5.75uJy (22.0 AB magnitude) at 3.6 and 4.5um, respectively --depths significantly fainter than the Wide-field Infrared Survey Explorer (WISE). We show that the SpIES survey recovers a much larger fraction of spectroscopically confirmed quasars (~98%) in Stripe 82 than are recovered by WISE (~55%). This depth is especially powerful at high-redshift (z>=3.5), where SpIES recovers 94% of confirmed quasars, whereas WISE only recovers 25%. Here we define the SpIES survey parameters and describe the image processing, source extraction, and catalog production methods used to analyze the SpIES data. In addition to this survey paper, we release 234 images created by the SpIES team and three detection catalogs: a 3.6um only detection catalog containing ~6.1 million sources, a 4.5um only detection catalog containing ~6.5 million sources, and a dual-band detection catalog containing ~5.4 million sources.
1784. Spitzer-CANDELS catalog within 5 deep fields
ID:
ivo://CDS.VizieR/J/ApJS/218/33
Title:
Spitzer-CANDELS catalog within 5 deep fields
Short Name:
J/ApJS/218/33
Date:
21 Oct 2021
Publisher:
CDS
Description:
The Spitzer-Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (S-CANDELS; PI G.Fazio) is a Cycle 8 Exploration Program designed to detect galaxies at very high redshifts (z>5). To mitigate the effects of cosmic variance and also to take advantage of deep coextensive coverage in multiple bands by the Hubble Space Telescope (HST) Multi-cycle Treasury Program CANDELS, S-CANDELS was carried out within five widely separated extragalactic fields: the UKIDSS Ultra-deep Survey, the Extended Chandra Deep Field South, COSMOS, the HST Deep Field North, and the Extended Groth Strip. S-CANDELS builds upon the existing coverage of these fields from the Spitzer Extended Deep Survey (SEDS), a Cycle 6 Exploration Program, by increasing the integration time from SEDS' 12hr to a total of 50hr but within a smaller area, 0.16deg^2^. The additional depth significantly increases the survey completeness at faint magnitudes. This paper describes the S-CANDELS survey design, processing, and publicly available data products. We present Infrared Array Camera (IRAC) dual-band 3.6+4.5{mu}m catalogs reaching to a depth of 26.5 AB mag. Deep IRAC counts for the roughly 135000 galaxies detected by S-CANDELS are consistent with models based on known galaxy populations. The increase in depth beyond earlier Spitzer/IRAC surveys does not reveal a significant additional contribution from discrete sources to the diffuse Cosmic Infrared Background (CIB). Thus it remains true that only roughly half of the estimated CIB flux from COBE/DIRBE is resolved.
1785. Spitzer Enhanced Imaging Products IRAC Coverage Table
ID:
ivo://irsa.ipac/Spitzer/Catalog/SEIP/IRAC_Cov
Title:
Spitzer Enhanced Imaging Products IRAC Coverage Table
Short Name:
SEIP IRAC Cov
Date:
01 Oct 2018 20:27:16
Publisher:
NASA/IPAC Infrared Science Archive
Description:
The Spitzer Science Center (SSC) and Infrared Science Archive (IRSA) have released a set of Enhanced Imaging Products from the Spitzer Heritage Archive. These include enhanced mosaic images created from multiple AORs where appropriate and a source list (SL) of photometry for compact sources. The enhanced imaging products include data from the four channels of IRAC (3-8 microns) and the 24 micron channel of MIPS. The Source List was designed to prioritize reliability over completeness. In order to make the Source List reliable, many sources were rejected. Therefore, it is not complete at any flux density. At bright flux densities, nearby galaxies may be rejected for being too extended, or for being too close to a neighboring galaxy. At faint flux densities, sources will be missing because they do not meet the signal-to-noise cut. Although the Source List is useful for many science projects, users who require high levels of completeness are encouraged to use caution. If you are interested in a source that does not appear in the Source List, you should first inspect the Coverage Table to ensure that the data exists, and then consider measuring the photometry on the Super Mosaics yourself.
1786. Spitzer Enhanced Imaging Products MIPS Coverage Table
ID:
ivo://irsa.ipac/Spitzer/Catalog/SEIP/MIPS_Cov
Title:
Spitzer Enhanced Imaging Products MIPS Coverage Table
Short Name:
SEIP MIPS Cov
Date:
01 Oct 2018 20:27:16
Publisher:
NASA/IPAC Infrared Science Archive
Description:
The Spitzer Science Center (SSC) and Infrared Science Archive (IRSA) have released a set of Enhanced Imaging Products from the Spitzer Heritage Archive. These include enhanced mosaic images created from multiple AORs where appropriate and a source list (SL) of photometry for compact sources. The enhanced imaging products include data from the four channels of IRAC (3-8 microns) and the 24 micron channel of MIPS. The Source List was designed to prioritize reliability over completeness. In order to make the Source List reliable, many sources were rejected. Therefore, it is not complete at any flux density. At bright flux densities, nearby galaxies may be rejected for being too extended, or for being too close to a neighboring galaxy. At faint flux densities, sources will be missing because they do not meet the signal-to-noise cut. Although the Source List is useful for many science projects, users who require high levels of completeness are encouraged to use caution. If you are interested in a source that does not appear in the Source List, you should first inspect the Coverage Table to ensure that the data exists, and then consider measuring the photometry on the Super Mosaics yourself.
1787. Spitzer Enhanced Imaging Products Source List
ID:
ivo://irsa.ipac/Spitzer/Catalog/SEIP/SourceList
Title:
Spitzer Enhanced Imaging Products Source List
Short Name:
SEIP
Date:
01 Oct 2018 20:27:16
Publisher:
NASA/IPAC Infrared Science Archive
Description:
The Spitzer Science Center and IRSA have released a set of Enhanced Imaging Products (SEIP) from the Spitzer Heritage Archive. These include Super Mosaics (combining data from multiple programs where appropriate) and a Source List of photometry for compact sources. The primary requirement on the Source List is very high reliability -- with areal coverage, completeness, and limiting depth being secondary considerations. The SEIP include data from the four channels of IRAC (3.6, 4.5, 5.8, 8 microns) and the 24 micron channel of MIPS. The full set of products for the Spitzer cryogenic mission includes around 42 million sources.
1788. Spitzer Enhanced Imaging Products Traceback Table
ID:
ivo://irsa.ipac/Spitzer/Catalog/SEIP/Traceback
Title:
Spitzer Enhanced Imaging Products Traceback Table
Short Name:
SEIP Traceback
Date:
01 Oct 2018 20:27:16
Publisher:
NASA/IPAC Infrared Science Archive
Description:
The Spitzer Science Center (SSC) and Infrared Science Archive (IRSA) have released a set of Enhanced Imaging Products from the Spitzer Heritage Archive. These include enhanced mosaic images created from multiple AORs where appropriate and a source list (SL) of photometry for compact sources. The enhanced imaging products include data from the four channels of IRAC (3-8 microns) and the 24 micron channel of MIPS. The Traceback Table is designed to allow users to translate between Program ID/AOR number/DCE number (information about pipeline data available from the Spitzer Heritage Archive) and Supermosaic ID/Region ID in the Spitzer Enhanced Imaging Products.
1789. Spitzer-FLS catalog of clusters of galaxies
ID:
ivo://CDS.VizieR/J/ApJ/686/966
Title:
Spitzer-FLS catalog of clusters of galaxies
Short Name:
J/ApJ/686/966
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a catalog of 99 candidate clusters and groups of galaxies in the redshift range 0.1<z_phot_<1.3 discovered in the Spitzer First-Look Survey (FLS). The clusters are selected by their Rc-3.6um galaxy color-magnitude relation using the cluster red-sequence algorithm. Using this cluster sample, we compute the 3.6, 4.5, 5.8, and 8.0um, cluster luminosity functions (LFs).
1790. Spitzer IRAC GOODS 3\.6 micron data, channel 1
ID:
ivo://nasa.heasarc/skyview/goodsirac-1
Title:
Spitzer IRAC GOODS 3\.6 micron data, channel 1
Short Name:
GOODSIRAC 1
Date:
25 Apr 2025
Publisher:
NASA/GSFC HEASARC
Description:
Spitzer IRAC medium infrared observations taken in all four IRAC channels in both the north and south GOODS fields. Provenance: IRAC Goods Team, IRSA data center. This is a service of NASA HEASARC.

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