2019A&A...631A.116G


C.D.S. - SIMBAD4 rel 1.7 - 2020.04.04CEST09:13:01

2019A&A...631A.116G - Astronomy and Astrophysics, volume 631A, 116-116 (2019/11-1)

Open Universe for Blazars: a new generation of astronomical products based on 14 years of Swift-XRT data.

GIOMMI P., BRANDT C.H., BARRES DE ALMEIDA U., POLLOCK A.M.T., ARNEODO F., CHANG Y.L., CIVITARESE O., DE ANGELIS M., D'ELIA V., DEL RIO VERA J., DI PIPPO S., MIDDEI R., PENACCHIONI A.V., PERRI M., RUFFINI R., SAHAKYAN N. and TURRIZIANI S.

Abstract (from CDS):


Aims. Open Universe for Blazars is a set of high-transparency multi-frequency data products for blazar science, and the tools designed to generate them. Blazars are drawing growing interest following the consolidation of their position as the most abundant type of source in the extragalactic very high-energy γ-ray sky, and because of their status as prime candidate sources in the nascent field of multi-messenger astrophysics. As such, blazar astrophysics is becoming increasingly data driven, depending on the integration and combined analysis of large quantities of data from the entire span of observational astrophysics techniques. The project was therefore chosen as one of the pilot activities within the United Nations Open Universe Initiative, whose objective is to stimulate a large increase in the accessibility and ease of utilisation of space science data for the worldwide benefit of scientific research, education, capacity building, and citizen science.
Methods. Our aim is to deliver innovative data science tools for multi-messenger astrophysics. In this work we report on a data analysis pipeline called Swift-DeepSky based on the Swift XRTDAS software and the XIMAGE package, encapsulated into a Docker container. Swift-DeepSky downloads and reads low-level data, generates higher level products, detects X-ray sources, and estimates several intensity and spectral parameters for each detection, thus facilitating the generation of complete and up-to-date science-ready catalogues from an entire space-mission data set.
Results. As a first application of our innovative approach, we present the results of a detailed X-ray image analysis based on Swift-DeepSky that was run on all Swift-XRT observations including a known blazar, carried out during the first 14 years of operations of the Neil Gehrels Swift Observatory. Short exposures executed within one week of each other have been added to increase sensitivity, which ranges between ∼1x10–12 and ∼1x10–14erg/cm2/s (0.3-10.0keV). After cleaning for problematic fields, the resulting database includes over 27000 images integrated in different X-ray bands, and a catalogue, called 1OUSXB, that provides intensity and spectral information for 33396 X-ray sources, 8896 of which are single or multiple detections of 2308 distinct blazars. All the results can be accessed online in a variety of ways, from the Open Universe portal through Virtual Observatory services, via the VOU-Blazar tool and the SSDC SED builder. One of the most innovative aspects of this work is that the results can be easily reproduced and extended by anyone using the Docker version of the Swift-DeepSky pipeline, which runs on Linux, Mac, and Windows machines, and does not require any specific experience in X-ray data analysis.

Abstract Copyright: © ESO 2019

Journal keyword(s): galaxies: active - X-rays: galaxies - methods: data analysis - catalogs

Status at CDS:  

Simbad objects: 22

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Number of rows : 22

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 QSO B0208-512 BLL 02 10 46.2000629834 -51 01 01.893312084   17.10 16.93 14.82   ~ 377 1
2 3C 66A BLL 02 22 39.6111630878 +43 02 07.797284539   15.71 15.21 14.5   ~ 784 1
3 QSO B0235+1624 BLL 02 38 38.93010 +16 36 59.2746   16.46 15.50 15.92   ~ 1381 2
4 QSO J0324+3410 BLL 03 24 41.1612231119 +34 10 45.856728058     15.72 13.1   ~ 193 1
5 QSO J0509+0541 BLL 05 09 25.9645434784 +05 41 35.333636817 15.32 14.95 14.78 15.12   ~ 196 2
6 QSO J0530+13 QSO 05 30 56.41672 +13 31 55.1495     20.0 19.35   ~ 876 1
7 8C 0716+714 BLL 07 21 53.4484901266 +71 20 36.362058601   15.5 14.17 14.27   ~ 1116 1
8 QSO J0854+2006 BLL 08 54 48.8749311881 +20 06 30.642936668   15.91 15.43 15.56   ~ 1974 1
9 ICRF J092338.8-213547 QSO 09 23 38.8853243380 -21 35 47.132418342   13.0   12.80   ~ 73 0
10 Mrk 421 BLL 11 04 27.3139210166 +38 12 31.798324828   13.50 12.90 8.31   ~ 2358 1
11 QSO B1207+39 BLL 12 10 26.5898319697 +39 29 08.601058075   20.77 20.3 19.9   ~ 105 0
12 7C 1219+2830 BLL 12 21 31.6902446545 +28 13 58.500383827   16.81 16.11 14.24   ~ 772 1
13 4C 21.35 QSO 12 24 54.4583467193 +21 22 46.385219365   17.56 17.50 18.2   ~ 549 2
14 3C 279 QSO 12 56 11.1664521013 -05 47 21.531840471   18.01 17.75 15.87   ~ 2669 2
15 QSO J1512-0906 QSO 15 12 50.53292491 -09 05 59.8295878   16.74 16.54     ~ 1133 1
16 QSO B1553+113 BLL 15 55 43.0439413597 +11 11 24.365587666 14.91 14.72 14.57 13.99   ~ 406 1
17 4C 38.41 QSO 16 35 15.492970280 +38 08 04.50062279   18.14 17.97 17.25   ~ 740 1
18 4C 39.49 BLL 16 53 52.21668494 +39 45 36.6089458 14.09 14.15 13.29 8.26   ~ 1901 2
19 QSO B1730-130 QSO 17 33 02.70578476 -13 04 49.5481484   18 18.5 18.78   ~ 971 1
20 4C 11.69 QSO 22 32 36.40890517 +11 43 50.9040717   17.75 17.33     ~ 953 2
21 3C 454.3 QSO 22 53 57.74798 +16 08 53.5611   16.57 16.10 15.22   ~ 2475 2
22 QSO B2344+514 BLL 23 47 04.8376303689 +51 42 17.875387216     15.50 10.7   ~ 382 0

    Equat.    Gal    SGal    Ecl

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2020.04.04-09:13:01

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