Main Search Form Search of CHANDRA Catalog(s) Tips Archive Hera Data Analysis Help

Description Catalog Data Default Radius (arcmin) Mission Table Type
M 31 Central Region Chandra X-Ray Point Source Catalog m31cxoxrayN
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 CXOM31 J004150.3+411337 CXOM31 J004337.2+411443 string
ra 00 41 50.336 00 43 37.269 position
dec +41 04 34.98 +41 26 33.58 position
error_radius (arcsec) 0.01 2.60 float
count_rate (ct/s) 0.0002 0.1953 float
count_rate_error (ct/s) 0.0001 0.0028 float
counts (ct) 8 7749 integer
source_number r1-1 r3-99 string
lii (degree) 120.990822 121.351675 float
bii (degree) -21.763757 -21.400324 float
hardness_ratio_1 -0.98 1.00 float
hardness_ratio_1_error 0.01 0.80 float
hardness_ratio_2 -1.00 1.00 float
hardness_ratio_2_error 0.01 0.77 float
xray_luminosity (erg/s) 2.000e+35 1.455e+38 float
note_codes e v,t string

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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