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Description Catalog Data Default Radius (arcmin) Mission Table Type
W 40 Star-Forming Region Chandra X-Ray Point Source Catalog w40sfrcxoN
1
 CHANDRA Object

1. Enter any constraints on the query below. [ Help on constraint syntax ]

(What about wildcards, spaces, and case sensitivity?)

2. To change the fields that are returned, select the box in the "View" column beside each field desired.

3. To sort the results by any field, select one box in the "Sort" column beside the field to sort on.


 Parameter (Unit) Min Value Max Value Value Type
name CXOW40 J183046.25-020937.3 CXOW40 J183157.08-020214.3 string
ra 18 30 46.253 18 31 57.078 position
dec -02 14 49.32 -01 56 08.49 position
counts (ct) 2.77 1189.65 float
counts_error (ct) 2.5 35.0 float
log_lx_1 (log(erg/s)) 28.93 33.56 float
log_hb_lx_1 (log(erg/s)) 26.98 31.53 float
twomass_name 2MASS J18304624-0209377 2MASS J18315707-0202142 string
jmag (mag) 7.68 18.54 float
source_number 1 225 integer
alt_name [KGF2010] 1 [KGF2010] 99 string
lii (degree) 28.635950 28.916456 float
bii (degree) 3.356042 3.625962 float
error_radius (arcsec) 0.0 1.5 float
off_axis (arcmin) 0.1 10.5 float
bck_counts (ct) 0.1 19.4 float
hb_counts (ct) 0.0 896.9 float
psf_fraction 0.69 0.91 float
significance 0.5 33.5 float
source_anomaly_flag 0 1 integer
source_variable_flag 1 4 integer
exposure (s) 6100 35700 float
cxo_2mass_offset (arcsec) 0.0 2.6 float
jmag_error (mag) 0.02 0.26 float
hmag (mag) 6.45 17.44 float
hmag_error (mag) 0.02 0.28 float
ks_mag (mag) 5.53 15.32 float
ks_mag_error (mag) 0.02 0.26 float
twomass_flags AAA000 UUC000 string
membership_class EG W40-noKs string
av (mag) 0.00 34.50 float
stellar_mass (Solar Mass) 0.03 32.46 float
stellar_mass_error (Solar Mass) 0.03 5.77 float
ukirt_flag 0 3 integer
vla_id 1 20 integer
median_energy (keV) 0.97 5.69 float
log_hb_lx_obs (log(erg/s)) 26.97 99.00 float
log_lx_obs (log(erg/s)) 28.68 31.48 float
apec_kt (keV) 0.21 15.00 float
log_nh_1 (log(cm^-2)) 20.00 23.46 float
log_nh_2 (log(cm^-2)) 20.26 23.48 float
log_nh_2_error (log(cm^-2)) 0.05 0.71 float
log_hb_lx_2 (log(erg/s)) 28.94 31.58 float
log_hb_lx_2_error (log(erg/s)) 0.03 0.34 float
log_lx_2 (log(erg/s)) 29.34 31.93 float
log_lx_2_error (log(erg/s)) 0.08 0.46 float

4. Do you want to change your current query settings?


(e.g. 'Cyg X-1' or '12 00 00, 4 12 6')
Use semicolons (;) to separate multiple object names or coordinate pairs (e.g. 'Cyg X-2; 12.235, 15.345').
Default uses the optimum radius for each catalog searched.

Not all tables have observation dates/times. For those that do, the time portion of the date is optional.
Times are always in UTC. Separate multiple dates/ranges with semicolons (;). Range operator is '..'
(e.g. '1992-12-31; 48980.5; 1995-01-15 12:00:00; 1997-03-20 .. 2000-10-18').
rows
Select to display all catalog parameters instead of only defaults.

5.


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