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Table 3

Chandra imaging observations of (c)LBVs.

Simbad name Seqnum Obs_ID OFA Count rate log  [LX/LBOL] 
(′) ct s-1 erg cm-2 s-1 erg s-1
Cl* West. 1 W 243 200344 5411 1.7 0.00029..61  ±  0.00015: 1.7...3.5 × 10-15: 1.5...3.1 × 1032: −7.3...−7.0:
200344 6283 2.1
GAL 026.47+00.02 400603 7493 4.3 0.0161  ±  0.0009 (1.73 ± 0.10) × 10-13 (4.3 ± 0.2) × 1033 −5.95 ± 0.02
NAME LBV 1806-20a 500599 6251H 0.4  <0.0009  <3.7 × 10-14  <6.9 × 1034  <−5.0
500042 746 0.6  <0.0011  <1.0 × 10-14  <2.0 × 1034  <−5.6
NAME Sher 25 star 200058 633 0.6  <0.000017  <1.1 × 10-16  <4.9 × 1030  <−8.8
200666 12328 0.6
200666 12329 0.5
200666 12330 0.5
200666 13162 0.5
 [OMN2000]  LS1 200132 2524 5.9  <0.00018  <1.4 × 10-15  <1.6 × 1032  <−7.1
200132 3711 5.9
2MASS J18415965 400662 7552 6.2  <0.00016  <1.3 × 10-15
–0515409
MN53 500140 1963H 7.4  <0.002  <2.4 × 10-14
MN79 500629 6675 1.7  <0.00025  <1.0 × 10-15
MN83b 400603 7493 5.2  <0.0002  <1.5 × 10-15
eta Car see Corcoran et al. (2010) 0.06...3 × 10-10  ~–5
NAME VI Cyg 12 see Rauw (2011) 2.7 × 10-12 8.2 × 1033 −6.1
Galactic center photon fluxes (ph cm-2 s-1)
qF 362  <1.5 × 10-6  <5.6 × 10-15  <7.8 × 1033  <−5.9
GCIRS 34W (9.8 ± 0.2) × 10-6 7.5...8.1 × 10-14 1.0...1.1 × 1033  ~−6.1
Pistol Star  <1.5 × 10-6  <5.6 × 10-15  <7.8 × 1033  <−5.9
WR102ka  <2 × 10-6  <7.4 × 10-15  <5.0 × 1033  <−6.4
GCIRS 16NE  <3.7 × 10-6  <1.4 × 10-14
GCIRS 16C  <3.7 × 10-6  <1.4 × 10-14  <9.1 × 1033  <−5.5
GCIRS 16SW  <3.7 × 10-6  <1.4 × 10-14
GCIRS 16NW  <3.7 × 10-6  <1.4 × 10-14  <9.1 × 1033  <−5.5
GCIRS 33SE (1.41 ± 0.02) × 10-5 (1.42 ± 0.02) × 10-13 (1.23 ± 0.02) × 1033 −6.244 ± 0.006
2MASS J17460562  <1.2 × 10-6  <4.4 × 10-15  <6.2 × 1033  <−6.0...6.4
–2851319

Notes. A “H” after the Obs_ID indicates HRC data, the off-axis angle (OFA) is the distance to the non-offset aimpoint. Column 1 provides the (c)LBV name, Cols. 2 to 4 the details of the observation used, and the next columns present the derived count rates, observed fluxes, and absorption-corrected luminosities in the 0.5–8.0 keV energy range. For the detected objects, the quoted errors correspond to 1-σ; for non-detections, the quoted limits correspond to a 90% chance of being detected were the source brighter.

(a)

One additional observation (seqnum = 500598, obsid = 6224) covered the region containing this cLBV, but at a very wide off-axis angle: the presence of a neighboring bright pulsar prevents any detection at this position.

(b)

Two additional observations (seqnum = 500759, obsid = 7630 and 9754) covered the region that contains this cLBV, but the source lies on the CCDs outer edges.

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