- ID:
- ivo://irsa.ipac/Spitzer/Catalog/C2D/C2D-HROFFCLOUD
- Title:
- C2D High Reliability OFF-CLOUD Catalog
- Short Name:
- C2D-HROFFCLOUD
- Date:
- 01 Oct 2018 20:27:17
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Cores to Disks (C2D) Spitzer Legacy Program used all three Spitzer instruments (IRAC, MIPS, and IRS) to observe sources that span the evolutionary sequence from molecular cores to protoplanetary disks, encompassing a wide range of cloud masses, stellar masses, and star-forming environments. In addition to targeting about 150 known compact cores, it surveyed with IRAC and MIPS (3.6-70 mum) the entire areas of five of the nearest large molecular clouds for new candidate protostars and substellar objects as faint as 0.001 solar luminosities. C2D observed with IRAC and MIPS about 190 systems likely to be in the early stages of planetary system formation (ages up to about 10 Myr), probing the evolution of the circumstellar dust, the raw material for planetary cores. The High Reliability OFF-CLOUD Catalog provides the most reliable list of sources in the C2D OFF-CLOUD fields (ChamaeleonII (CHA_II), Lupus (LUP), Ophiuchus (OPH), Perseus (PER) and Serpens (SER)). It is derived from the Full Catalog but requires good signal-to-noise detection in some bands.
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- ID:
- ivo://irsa.ipac/Spitzer/Catalog/C2D/C2D-HRSTARS
- Title:
- C2D High Reliability STARS Catalog
- Short Name:
- C2D-HRSTARS
- Date:
- 01 Oct 2018 20:27:17
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Cores to Disks (C2D) Spitzer Legacy Program used all three Spitzer instruments (IRAC, MIPS, and IRS) to observe sources that span the evolutionary sequence from molecular cores to protoplanetary disks, encompassing a wide range of cloud masses, stellar masses, and star-forming environments. In addition to targeting about 150 known compact cores, it surveyed with IRAC and MIPS (3.6-70 mum) the entire areas of five of the nearest large molecular clouds for new candidate protostars and substellar objects as faint as 0.001 solar luminosities. C2D observed with IRAC and MIPS about 190 systems likely to be in the early stages of planetary system formation (ages up to about 10 Myr), probing the evolution of the circumstellar dust, the raw material for planetary cores. The High Reliability STARS Catalog provides the most reliable list of sources in the C2D STARS fields (160 targeted stars). It is derived from the Full Catalog but requires good signal-to-noise detection in some bands.
- ID:
- ivo://CDS.VizieR/J/A+A/417/375
- Title:
- Cd III Stark broadening parameters
- Short Name:
- J/A+A/417/375
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Stark broadening parameters, widths and shifts, for 84 spectral lines of doubly-ionized cadmium (Cd III) have been calculated using the modified semi-empirical approach (MSE). Calculated spectral lines belong to the transitions 4d^9^5s-4d^9^5p and 4d^9^5p-4d^9^5d. Widths and shifts of the spectral lines are given for temperature range of 5000K-60000K and an electron density of 10^23^m^-3^. The influence of collisions with charged particles on Cd III UV stellar lines along the HR diagram is discussed. Compared to the Doppler broadening, the influence of the Stark broadening mechanism is more important for deeper atmospheric layers and for larger values of logg. Stark broadening does not depend on turbulent velocity for the considered stellar model of a standard main sequence hot star of A0 spectral type. The influence of the Stark widths for standard models of DA and DB white dwarfs is also discussed.
- ID:
- ivo://CDS.VizieR/J/ApJS/245/13
- Title:
- CDIPS. I. LCs from TESS sectors 6 and 7
- Short Name:
- J/ApJS/245/13
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The Transiting Exoplanet Survey Satellite (TESS) is providing precise time-series photometry for most star clusters in the solar neighborhood. Using the TESS images, we have begun a Cluster Difference Imaging Photometric Survey, in which we are focusing both on stars that are candidate cluster members and on stars that show indications of youth. Our aims are to discover giant transiting planets with known ages, and to provide light curves suitable for studies in stellar astrophysics. For this work, we made 159343 light curves of candidate young stars, across 596 distinct clusters. Each light curve represents between 20 and 25 days of observations of a star brighter than G_Rp_=16, with 30-minute sampling. We describe the image-subtraction and time-series analysis techniques we used to create the light curves, which have noise properties that agree with theoretical expectations. We also comment on the possible utility of the light-curve sample for studies of stellar rotation evolution and binary eccentricity damping.
- ID:
- ivo://irsa.ipac/Spitzer/Catalog/C2D/C2D-MM
- Title:
- C2D Millimeter Sources Catalog
- Short Name:
- C2D-MM
- Date:
- 01 Oct 2018 20:27:17
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Cores to Disks (C2D) Spitzer Legacy Program used all three Spitzer instruments (IRAC, MIPS, and IRS) to observe sources that span the evolutionary sequence from molecular cores to protoplanetary disks, encompassing a wide range of cloud masses, stellar masses, and star-forming environments. In addition to targeting about 150 known compact cores, it surveyed with IRAC and MIPS (3.6-70 mum) the entire areas of five of the nearest large molecular clouds for new candidate protostars and substellar objects as faint as 0.001 solar luminosities. C2D observed with IRAC and MIPS about 190 systems likely to be in the early stages of planetary system formation (ages up to about 10 Myr), probing the evolution of the circumstellar dust, the raw material for planetary cores. The Millimeter Sources Catalog lists the sources in the ancillary Bolocam data toward the Ophiuchus (OPH), Perseus (PER) and Serpens (SER) clouds.
- ID:
- ivo://irsa.ipac/Spitzer/Catalog/C2D/C2D-TransientEp2
- Title:
- C2D Perseus Epoch 2 Transient Sources Catalog
- Short Name:
- C2D-TransientEp2
- Date:
- 01 Oct 2018 20:27:17
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Cores to Disks (C2D) Spitzer Legacy Program used all three Spitzer instruments (IRAC, MIPS, and IRS) to observe sources that span the evolutionary sequence from molecular cores to protoplanetary disks, encompassing a wide range of cloud masses, stellar masses, and star-forming environments. In addition to targeting about 150 known compact cores, it surveyed with IRAC and MIPS (3.6-70 mum) the entire areas of five of the nearest large molecular clouds for new candidate protostars and substellar objects as faint as 0.001 solar luminosities. C2D observed with IRAC and MIPS about 190 systems likely to be in the early stages of planetary system formation (ages up to about 10 Myr), probing the evolution of the circumstellar dust, the raw material for planetary cores. The Perseus Transient Sources Catalogs list the transient sources detected above 1.6 mJy in the MIPS observations of the Perseus molecular cloud region.
- ID:
- ivo://irsa.ipac/Spitzer/Catalog/C2D/C2D-TransientEp1
- Title:
- C2D Perseus Epoch 1 Transient Sources Catalog
- Short Name:
- C2D-TransientEp1
- Date:
- 01 Oct 2018 20:27:17
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Cores to Disks (C2D) Spitzer Legacy Program used all three Spitzer instruments (IRAC, MIPS, and IRS) to observe sources that span the evolutionary sequence from molecular cores to protoplanetary disks, encompassing a wide range of cloud masses, stellar masses, and star-forming environments. In addition to targeting about 150 known compact cores, it surveyed with IRAC and MIPS (3.6-70 mum) the entire areas of five of the nearest large molecular clouds for new candidate protostars and substellar objects as faint as 0.001 solar luminosities. C2D observed with IRAC and MIPS about 190 systems likely to be in the early stages of planetary system formation (ages up to about 10 Myr), probing the evolution of the circumstellar dust, the raw material for planetary cores. The Perseus Transient Sources Catalogs list the transient sources detected above 1.6 mJy in the MIPS observations of the Perseus molecular cloud region.
- ID:
- ivo://cdpp/tap
- Title:
- CDPP EPN-TAP server TAP service
- Short Name:
- CDPP TAP
- Date:
- 03 Jul 2024 15:47:27
- Publisher:
- CDPP - Centre de Données de la Physique des Plasmas
- Description:
- The CDPP EPN-TAP server's TAP end point. The Table Access Protocol (TAP) lets you execute queries against our database tables, inspect various metadata, and upload your own data. It is thus the VO's premier way to access public data holdings. Tables exposed through this endpoint include: epn_core from the amdadb schema, epn_core from the illu67p schema, columns, groups, key_columns, keys, schemas, tables from the tap_schema schema, epn_core from the transplanet schema.
- ID:
- ivo://CDS.VizieR/II/332
- Title:
- c2d Spitzer final data release (DR4)
- Short Name:
- II/332
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Crucial steps in the formation of stars and planets can be studied only at mid- to far-infrared wavelengths, where the Space Infrared Telescope (SIRTF) provides an unprecedented improvement in sensitivity. We will use all three SIRTF instruments (Infrared Array Camera [IRAC], Multiband Imaging Photometer for SIRTF [MIPS], and Infrared Spectrograph [IRS]) to observe sources that span the evolutionary sequence from molecular cores to protoplanetary disks, encompassing a wide range of cloud masses, stellar masses, and star-forming environments. In addition to targeting about 150 known compact cores, we will survey with IRAC and MIPS (3.6-70{mu}m) the entire areas of five of the nearest large molecular clouds for new candidate protostars and substellar objects as faint as 0.001 solar luminosities. We will also observe with IRAC and MIPS about 190 systems likely to be in the early stages of planetary system formation (ages up to about 10Myr), probing the evolution of the circumstellar dust, the raw material for planetary cores. Candidate planet-forming disks as small as 0.1 lunar masses will be detectable. Spectroscopy with IRS of new objects found in the surveys and of a select group of known objects will add vital information on the changing chemical and physical conditions in the disks and envelopes. The resulting data products will include catalogs of thousands of previously unknown sources, multiwavelength maps of about 20deg^2^ of molecular clouds, photometry of about 190 known young stars, spectra of at least 170 sources, ancillary data from ground-based telescopes, and new tools for analysis and modeling. These products will constitute the foundations for many follow-up studies with ground-based telescopes, as well as with SIRTF itself and other space missions such as SIM, JWST, Herschel, and TPF/Darwin.
- ID:
- ivo://CDS.VizieR/J/ApJ/678/985
- Title:
- c2d Spitzer survey of interstellar ices. I.
- Short Name:
- J/ApJ/678/985
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- To study the physical and chemical evolution of ices in solar-mass systems, a spectral survey is conducted of a sample of 41 low-luminosity YSOs (L~0.1-10L_{sun}_) using 3-38um Spitzer and ground-based spectra. The sample is complemented with previously published Spitzer spectra of background stars and with ISO spectra of well-studied massive YSOs (L~10^5^L_{sun}_). The long-known 6.0 and 6.85um bands are detected toward all sources, with the Class 0-type YSOs showing the deepest bands ever observed. The 6.0um band is often deeper than expected from the bending mode of pure solid H_2_O. The additional 5-7um absorption consists of five independent components, which, by comparison to laboratory studies, must be from at least eight different carriers. Much of this absorption is due to simple species likely formed by grain surface chemistry, at abundances of 1%-30% for CH_3_OH, 3%-8% for NH_3_, 1%-5% for HCOOH, ~6% for H_2_CO, and ~0.3% for HCOO- relative to solid H_2_O. The 6.85um band has one or two carriers, of which one may be less volatile than H_2_O. Its carrier(s) formed early in the molecular cloud evolution and do not survive in the diffuse ISM. If an NH_4_^+^ -containing salt is the carrier, its abundance relative to solid H_2_O is ~7%, demonstrating the efficiency of low-temperature acid-base chemistry or cosmic-ray-induced reactions. Possible origins are discussed for enigmatic, very broad absorption between 5 and 8um. Finally, the same ices are observed toward massive and low-mass YSOs, indicating that processing by internal UV radiation fields is a minor factor in their early chemical evolution.