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

Description Catalog Data Default Radius (arcmin) Mission Table Type
Orion Nebula Cluster Chandra HRC Optical Sample onccxooptN
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
source_number 1 696 integer
name [FDM2003] Opt 1 [FDM2003] Opt 99 string
ra 05 34 12.81 05 36 30.83 position
dec -05 39 11.89 -05 07 56.66 position
lii (degree) 208.72904 209.31372 float
bii (degree) -19.67732 -19.05106 float
stellar_mass (Solar Mass) 0.01 45.70 float
log_stellar_age (log(yr)) 3.99 8.88 float
rotation_period (d) 0.19 34.50 float
ca_ii_equiv_width (Angstrom) -69.50 21.40 float
count_rate_limit < < string
count_rate (ct/s) 0.00011 1.88097 float
log_lx_limit < < string
log_lx (log(erg/s)) 28.61 33.20 float
log_lx_lbol_limit < < string
log_lx_lbol -7.72 -1.93 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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