2008A&A...488.1221R


Query : 2008A&A...488.1221R

2008A&A...488.1221R - Astronomy and Astrophysics, volume 488, 1221-1236 (2008/9-4)

The Brera multi-scale wavelet Chandra survey. I. Serendipitous source catalogue.

ROMANO P., CAMPANA S., MIGNANI R.P., MORETTI A., MOTTINI M., PANZERA M.R. and TAGLIAFERRI G.

Abstract (from CDS):

We present the BMW-Chandra source catalogue drawn from essentially all Chandra ACIS-I pointed observations with an exposure time in excess of 10 ks public as of March 2003 (136 observations). Using the wavelet detection algorithm developed by Lazzati et al. (1999ApJ...524..414) and Campana et al. (1999ApJ...524..423C), which can characterise both point-like and extended sources, we identified 21325 sources. Among them, 16758 are serendipitous, i.e. not associated with the targets of the pointings, and do not require a non-automated analysis. This makes our catalogue the largest compilation of Chandra sources to date. The 0.5-10keV absorption corrected fluxes of these sources range from ∼3x10–16 to 9x10–12erg/cm2/s with a median of 7x10–15erg/cm2/s. The catalogue consists of count rates and relative errors in three energy bands (total, 0.5-7keV; soft, 0.5-2keV; and hard, 2-7keV), and source positions relative to the highest signal-to-noise detection among the three bands. The wavelet algorithm also provides an estimate of the extension of the source. We include information drawn from the headers of the original files, as well, and extracted source counts in four additional energy bands, SB1 (0.5-1keV), SB2 (1-2keV), HB1 (2-4keV), and HB2 (4-7keV). We computed the sky coverage for the full catalogue and for a subset at high Galactic latitude (|b|>20°). The complete catalogue provides a sky coverage in the soft band (0.5-2keV, S/N=3) of ∼8deg2 at a limiting flux of ∼10–13erg/cm2/s, and ∼2deg2 at a limiting flux of ∼10–15erg/cm2/s. Furthermore, we present the results of the cross-match with existing catalogues at different wavelengths (FIRST, IRAS, 2MASS, GSC2, and ChaMP). The total numbers of matches with the FIRST, IRASPSC, 2MASS, and GSC2 catalogues obtained after a closest-distance selection are 13, 87, 6700, and 4485, respectively.

Abstract Copyright:

Journal keyword(s): catalogs - X-rays: general

VizieR on-line data: <Available at CDS (J/A+A/488/1221): catalog.dat BMC1.0.1AA.FITS>

Nomenclature: Catalog, col(1): [RCM2008] NNNNN (Nos 1-21325) = col(2): 1BMC JHHMMSS.s+DDMMSS N=21325.

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 35

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Number of rows : 35
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 NGC 55 GiG 00 14 53.602 -39 11 47.86 8.54 8.58 7.87 7.84   ~ 748 2
2 NAME Herschel Deep Field reg 00 22 33 +00 19.6           ~ 34 0
3 NGC 104 GlC 00 24 05.359 -72 04 53.20   5.78 4.09     ~ 3781 0
4 NGC 346 Cl* 00 59 05.090 -72 10 33.24           ~ 471 0
5 QSO J0311-7651 BLL 03 11 55.2496997640 -76 51 50.848335324 15.27 16.09 16.10 15.33   ~ 219 1
6 NGC 1333 OpC 03 29 11 +31 18.6           ~ 1371 1
7 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 2001 1
8 NGC 1395 SyG 03 38 29.789 -23 01 39.69   10.71   8.99   ~ 271 0
9 IC 348 OpC 03 44 32 +32 09.5           ~ 1334 1
10 V* V518 Per HXB 04 21 42.7227473352 +32 54 26.939156184 13.00 13.50 13.2     M4.5V 641 1
11 LDN 1551 DNe 04 31 30.0 +18 12 30           ~ 794 1
12 NGC 2024 Cl* 05 41 43 -01 50.5           ~ 1123 1
13 NGC 2264 OpC 06 40 52 +09 52.6           ~ 1730 0
14 NAME Maddalena Cloud MoC 06 48.1 -03 52           ~ 89 0
15 NGC 2516 OpC 07 58 06 -60 48.0           ~ 670 0
16 NGC 2682 OpC 08 51 23 +11 48.8           ~ 2233 0
17 V* ET Car cC* 10 11 24.3411429576 -61 29 10.211311428         13.360 ~ 12 0
18 * eta Car Em* 10 45 03.5377808928 -59 41 04.051599720 6.37 7.03 6.48 4.90 4.41 OBepec 2363 0
19 NGC 3603 OpC 11 15 11 -61 15.5           ~ 1032 1
20 LEDA 34570 Sy1 11 18 30.2894794680 +40 25 54.068810952   16.34 16.21     ~ 215 0
21 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 2042 2
22 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1889 1
23 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1091 1
24 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3299 0
25 3C 295 Sy2 14 11 20.467 +52 12 09.52   22.34 20.80 18.54   ~ 955 5
26 V* QV Nor HXB 15 42 23.3633146128 -52 23 09.577395960   16.3 14.5     B0.2Ia:e 402 1
27 V* IL Lup HXB 15 47 08.2768672752 -47 40 10.284587760     11.96     ~ 462 1
28 5MUSES 266 AGN 16 36 08.119 +41 05 07.60 20.81         ~ 20 0
29 INTREF 776 LXB 17 23 38.7 -37 39 42           ~ 28 0
30 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 1911 0
31 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13437 0
32 NGC 6530 OpC 18 04 31 -24 21.5           ~ 400 0
33 M 16 OpC 18 18 45 -13 47.5   6.58 6.0     ~ 1006 2
34 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1574 0
35 V* QZ Vul HXB 20 02 49.58 +25 14 11.3   19.64 18.2     K3V-K6V 411 0

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2023.01.31-12:12:41

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