- ID:
- ivo://CDS.VizieR/J/ApJ/727/83
- Title:
- A panchromatic study of BLAST counterparts
- Short Name:
- J/ApJ/727/83
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We carry out a multi-wavelength study of individual galaxies detected by the Balloon-borne Large Aperture Submillimeter Telescope (BLAST) and identified at other wavelengths, using data spanning the radio to the ultraviolet (UV). We develop a Monte Carlo method to account for flux boosting, source blending, and correlations among bands, which we use to derive deboosted far-infrared (FIR) luminosities for our sample. We estimate total star-formation rates (SFRs) for BLAST counterparts with z<=0.9 by combining their FIR and UV luminosities. We assess that about 20% of the galaxies in our sample show indication of a type 1 active galactic nucleus, but their submillimeter emission is mainly due to star formation in the host galaxy. We compute stellar masses for a subset of 92 BLAST counterparts; these are relatively massive objects, with a median mass of ~10^11^M_{sun}_, which seem to link the 24um and Submillimetre Common-User Bolometer Array (SCUBA) populations, in terms of both stellar mass and star formation activity.
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- ID:
- ivo://CDS.VizieR/J/AJ/148/81
- Title:
- APASS BVgri photometry of RAVE stars. I. Data
- Short Name:
- J/AJ/148/81
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We provide AAVSO Photometric All-Sky Survey (APASS) photometry in the Landolt BV and Sloan g'r'i' bands for all 425743 stars included in the fourth RAVE Data Release. The internal accuracy of the APASS photometry of RAVE stars, expressed as the error of the mean of data obtained and separately calibrated over a median of four distinct observing epochs and distributed between 2009 and 2013, is 0.013, 0.012, 0.012, 0.014, and 0.021mag for the B, V, g', r', and i' bands, respectively. The equally high external accuracy of APASS photometry has been verified on secondary Landolt and Sloan photometric standard stars not involved in the APASS calibration process and on a large body of literature data on field and cluster stars, confirming the absence of offsets and trends. Compared with the Carlsberg Meridian Catalog (CMC-15), APASS astrometry of RAVE stars is accurate to a median value of 0.098arcsec. Brightness distribution functions for the RAVE stars have been derived in all bands. APASS photometry of RAVE stars, augmented by 2MASS JHK infrared data, has been {chi}^2^ fitted to a densely populated synthetic photometric library designed to widely explore temperature, surface gravity, metallicity, and reddening. Resulting T_eff_ and E_B-V_, computed over a range of options, are provided and discussed, and will be kept updated in response to future APASS and RAVE data releases. In the process, we find that the reddening caused by a homogeneous slab of dust, extending for 140pc on either side of the Galactic plane and responsible for E_B-V_^poles^=0.036+/-0.002 at the Galactic poles, is a suitable approximation of the actual reddening encountered at Galactic latitudes|b|>=25{deg}.
1043. APASS Data Archive
- ID:
- ivo://cadc.nrc.ca/APASS
- Title:
- APASS Data Archive
- Short Name:
- APASS Archive
- Date:
- 15 Jun 2019 21:15:00
- Publisher:
- Canadian Astronomy Data Centre
- Description:
- ID:
- ivo://CDS.VizieR/J/other/JAD/20.4
- Title:
- 180 APASS variable stars in Aquarius
- Short Name:
- J/other/JAD/20.4
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- During a search for RR Lyr variable stars candidate members of the Aquarius stream, which led to the discovery of 71 such objects, we also discovered an additional 180 variables which are presented in this paper. Of them, 141 were previously reported as variables and 39 are brand new. For all 180 objects, we provide: our epoch photometry, accurate positions, mean magnitude and amplitude of variation in Landolt B,V and Sloan g, r, i bands, cross-identification with WISE, 2MASS and GALEX surveys, accurate BVRCICgri photometric sequences and finding charts identifying the variable and the stars of the photometric sequence provided to support follow-up observations. We carried out a Fourier search on all 39 new variables and found periods for 11 of them.
- ID:
- ivo://astron.nl/apertif_dr_bootes/q/cone
- Title:
- Apertif DR Bootes - Catalogue
- Short Name:
- DR Bootes
- Date:
- 01 Aug 2024 09:31:58
- Publisher:
- ASTRON
- Description:
- Apertif is a phased-array feed system for the Westerbork Synthesis Radio Telescope (WSRT), providing forty instantaneous beams over 300 MHz of bandwidth. This data release includes the catalogue and image observed by Apertif covering 26.5 square degree region in the Boötes constellation at 1.4 GHz. The image is a mosaic of 187 Apertif images from 8 different survey observations performed between April 2019 and November 2021. It has an angular resolution of 27×11.5 arcseconds and a median background noise of 40 μJy/beam. From this mosaic, 8994 sources were extracted and the catalogue is complete down to the 0.3 mJy level. This service queries the source catalogue of the Boötes field.
- ID:
- ivo://astron.nl/apertif_dr_bootes/q/cutout
- Title:
- Apertif DR Bootes - Mosaic
- Short Name:
- DR Bootes
- Date:
- 01 Aug 2024 09:31:58
- Publisher:
- ASTRON
- Description:
- Apertif is a phased-array feed system for the Westerbork Synthesis Radio Telescope (WSRT), providing forty instantaneous beams over 300 MHz of bandwidth. This data release includes the catalogue and image observed by Apertif covering 26.5 square degree region in the Boötes constellation at 1.4 GHz. The image is a mosaic of 187 Apertif images from 8 different survey observations performed between April 2019 and November 2021. It has an angular resolution of 27×11.5 arcseconds and a median background noise of 40 μJy/beam. From this mosaic, 8994 sources were extracted and the catalogue is complete down to the 0.3 mJy level. This service queries the mosaic image of the Boötes field.
- ID:
- ivo://astron.nl/apertif_dr1/q/apertif_dr1_continuum_images
- Title:
- Apertif DR1 - Continuum images
- Short Name:
- Continuum images
- Date:
- 21 Oct 2024 00:54:16
- Publisher:
- ASTRON
- Description:
- Apertif is a phased-array feed system for the Westerbork Synthesis Radio Telescope (WSRT), providing forty instantaneous beams over 300 MHz of bandwidth. This first data release includes observations in the first year of survey operations, from 1 July 2019 through 30 June 2020. The data release includes all raw observational data for a total of 221 observations of 160 independent target fields, covering approximately one thousand square degrees of sky. A subset of processed data products, meeting specified quality assessment criteria as outlined in Adams et al. (2022), are also released. Images and cubes are released on a per beam basis, and 3374 beams (of 7640 considered) are included in this data release. The processed data products are only available for the upper 150 MHz of the band over the range 1280–1430 MHz. The first 12.5 MHz of data are flagged due to persistent RFI resulting in a nominal bandwidth of 137.5 MHz and central frequency of 1361.25 MHz. The data products are not primary-beam corrected, however the primary-beam images are provided separately that may be used for mosaicking or for correction of individual images. This service queries the continuum images from the first data release of Apertif. Multi-frequency synthesis (mfs) Stokes I images are produced over the full frequency range (1292.5– 1430 MHz) and saved as fits files for each beam. The size of the continuum images is 3.4 deg × 3.4 deg (3073 × 3073 pixels, with 4''/pixel). The median noise in the continuum images is 41.4 uJy/beam and the median angular resolution is 11.6''/sin(declination). A companion VO table provides a continuum source catalog based on all continuum images contained in this data release and is described in Kutkin et al. (2022) (see https://vo.astron.nl/apertif_dr1/q/apertif_dr1_catalogue/form).
- ID:
- ivo://astron.nl/apertif_dr1/q/apertif_dr1_calibrated_visibilities
- Title:
- Apertif DR1 - Field calibrated visibilities
- Short Name:
- CalVis
- Date:
- 21 Oct 2024 00:54:16
- Publisher:
- ASTRON
- Description:
- Apertif is a phased-array feed system for the Westerbork Synthesis Radio Telescope (WSRT), providing forty instantaneous beams over 300 MHz of bandwidth. This first data release includes observations in the first year of survey operations, from 1 July 2019 through 30 June 2020. The data release includes all raw observational data for a total of 221 observations of 160 independent target fields, covering approximately one thousand square degrees of sky. A subset of processed data products, meeting specified quality assessment criteria as outlined in Adams et al. (2022), are also released. Images and cubes are released on a per beam basis, and 3374 beams (of 7640 considered) are included in this data release. The processed data products are only available for the upper 150 MHz of the band over the range 1280–1430 MHz. The first 12.5 MHz of data are flagged due to persistent RFI resulting in a nominal bandwidth of 137.5 MHz and central frequency of 1361.25 MHz. The data products are not primary-beam corrected, however the primary-beam images are provided separately that may be used for mosaicking or for correction of individual images. This service queries the calibrated visibility measurement sets. The calibrated visibility data, with cross-calibration and self-calibration solutions applied, are currently stored as an intermediate data product at full time and spectral resolution. These are stored on tape with the raw data and are not immediately available for download. The data release documentation should be consulted for up-to-date information on how to access the data.
- ID:
- ivo://astron.nl/apertif_dr1/q/apertif_dr1_raw_visibilities
- Title:
- Apertif DR1 - Field raw visibilities
- Short Name:
- RawVis
- Date:
- 21 Oct 2024 00:54:16
- Publisher:
- ASTRON
- Description:
- Apertif is a phased-array feed system for the Westerbork Synthesis Radio Telescope (WSRT), providing forty instantaneous beams over 300 MHz of bandwidth. This first data release includes observations in the first year of survey operations, from 1 July 2019 through 30 June 2020. The data release includes all raw observational data for a total of 221 observations of 160 independent target fields, covering approximately one thousand square degrees of sky. A subset of processed data products, meeting specified quality assessment criteria as outlined in Adams et al. (2022), are also released. Images and cubes are released on a per beam basis, and 3374 beams (of 7640 considered) are included in this data release. The processed data products are only available for the upper 150 MHz of the band over the range 1280–1430 MHz. The first 12.5 MHz of data are flagged due to persistent RFI resulting in a nominal bandwidth of 137.5 MHz and central frequency of 1361.25 MHz. The data products are not primary-beam corrected, however the primary-beam images are provided separately that may be used for mosaicking or for correction of individual images. The raw visibility data are provided as separate collections for the survey fields, flux calibrator and polarization calibrator observations. The tables can be joined to identify the associated calibrators for a target observation. This service queries the raw visibilities for the survey fields. These are stored on tape and are not immediately available for download. The data release documentation should be consulted for up-to-date information on how to access the data.
- ID:
- ivo://astron.nl/apertif_dr1/q/apertif_dr1_flux_cal_visibilities
- Title:
- Apertif DR1 - Flux calibrator raw visibilities
- Short Name:
- FluxCalVis
- Date:
- 21 Oct 2024 00:54:16
- Publisher:
- ASTRON
- Description:
- Apertif is a phased-array feed system for the Westerbork Synthesis Radio Telescope (WSRT), providing forty instantaneous beams over 300 MHz of bandwidth. This first data release includes observations in the first year of survey operations, from 1 July 2019 through 30 June 2020. The data release includes all raw observational data for a total of 221 observations of 160 independent target fields, covering approximately one thousand square degrees of sky. A subset of processed data products, meeting specified quality assessment criteria as outlined in Adams et al. (2022), are also released. Images and cubes are released on a per beam basis, and 3374 beams (of 7640 considered) are included in this data release. The processed data products are only available for the upper 150 MHz of the band over the range 1280–1430 MHz. The first 12.5 MHz of data are flagged due to persistent RFI resulting in a nominal bandwidth of 137.5 MHz and central frequency of 1361.25 MHz. The data products are not primary-beam corrected, however the primary-beam images are provided separately that may be used for mosaicking or for correction of individual images. The raw visibility data are provided as separate collections for the survey fields, flux calibrator and polarization calibrator observations. The tables can be joined to identify the associated calibrators for a target observation. This service queries the raw visibilities for the flux calibrator. These are stored on tape and are not immediately available for download. The data release documentation should be consulted for up-to-date information on how to access the data.
