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http://hdl.handle.net/20.500.12386/27120
Titolo: | VizieR Online Data Catalog: NuSTAR serendipitous survey: the 40-month catalog (Lansbury+, 2017) | Autori: | Lansbury, G. B. Stern, D. Aird, J. Alexander, D. M. Fuentes, C. Harrison, F. A. Treister, E. Bauer, F. E. Tomsick, J. A. Balokovic, M. Del Moro, A. Gandhi, P. Ajello, M. Annuar, A. Ballantyne, D. R. Boggs, S. E. Brandt, W. N. Brightman, M. Chen, C. -T. J. Christensen, F. E. Civano, F. COMASTRI, Andrea Craig, W. W. Forster, K. Grefenstette, B. W. Hailey, C. J. Hickox, R. C. Jiang, B. Jun, H. D. Koss, M. Marchesi, S. Melo, A. D. Mullaney, J. R. Noirot, G. Schulze, S. Walton, D. J. ZAPPACOSTA, Luca Zhang, W. W. |
Data pubblicazione: | 2017 | Rivista: | VizieR Online Data Catalog | Da pagina:: | J/ApJ/836/99 | Abstract: | Over the period from 2012 July to 2015 November, which is the focus of the current study, there are 510 individual NuSTAR exposures that have been incorporated into the serendipitous survey. These exposures were performed over 331 unique fields (i.e., 331 individual sky regions, each with contiguous coverage composed of one or more NuSTAR exposures), yielding a total sky area coverage of 13deg<SUP>2</SUP>. Table 1 lists the fields chronologically. The fields have a cumulative exposure time of 20.4Ms. <P />We have undertaken a campaign of dedicated spectroscopic follow-up in the optical-IR bands, obtaining spectroscopic identifications for a large fraction (56%) of the total sample. Since NuSTAR performs science pointings across the whole sky, a successful ground-based follow-up campaign requires the use of observatories at a range of geographic latitudes, and preferably across a range of dates throughout the sidereal year. This has been achieved through observing programs with, primarily, the following telescopes over a multiyear period (2012 Oct 10 to 2016 Jul 10): the Hale Telescope at Palomar Observatory (5.1m; PIs F. A. Harrison and D. Stern); Keck I and II at the W. M. Keck Observatory (10m; PIs F. A. Harrison and D. Stern); the New Technology Telescope (NTT) at La Silla Observatory (3.6m; PI G. B. Lansbury); the Magellan I (Baade) and Magellan II (Clay) Telescopes at Las Campanas Observatory (6.5m; PIs E. Treister and F. E. Bauer); and the Gemini-South observatory (8.1m; PI E. Treister). (5 data files). | URI: | http://hdl.handle.net/20.500.12386/27120 | URL: | http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/ApJ/836/99 | DOI: | 10.26093/cds/vizier.18360099 | Bibcode ADS: | 2017yCat..18360099L | Fulltext: | open |
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