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Preliminary results of OTF test observations on Aquila Rift

During 21-24 April 2011,we use PMO Delingha 13.7metre millmetre telescople to observe a star formation region,Aquila Rift,in On-The-Fly mode.The mapping center is located at 18:29:23.0 -01:55:40(J2000)and the map size is 90' x 90'。We adopt the parameter as follows:

SOURCE

Aquila Rift

Observation center

RA(J2000) :18:30:03.0

DEC(J2000): -02:02:40.0

 REPEAT

 1

 THETAROW

 15

 WIDTH

 1800

 HEIGHT

 1800

 RAMP

 10

 SCANRATE

 50

 TDUMP

 0.3

 CALRATE

 3

 OFFINTTIME

 7

 CALINTTIME

 2



The mapping region is divided into 9 subregions and every single subregion was scanned only once along R.A.(cost about 90 minutes in total).The preliminary observation results is given as follows,and rms respectively are:CO ~ 0.5K,13CO,C18O ~ 0.35 K (During observations,typical system temperature of upper sideband and lower sideband is 320K and 180K)

(1)CO(1-0) integrated intensity map(The unit of the map is arcminute,the integrated intensity is shown by color in the unit of K km/s):

(2)13CO(1-0) integrated intensity map:

(3)C180(1-0) integrated intensity map:

(image or by GONG Yan)

 
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