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NB: in the presentation, those slides describing virtual observations in the project have a light blue background like this one -. NB: Those slides dedicated to real observations are just white like this one. Project Description :. = astro-ph/0110511

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NB: in the presentation, those slides describing virtual observations in the project have a light blue background like this one -

A T N F @ A S C

project description
Project Description :

= astro-ph/0110511

In: The Physics of Cataclysmic Variables and Related Objects,

ASP Conf. Ser., v. 261, eds. B. Gänsicke et al., p. 301, 2002

and

In: New Directions for Close Binary Studies:

“The Royal Road to the Stars”,

Publ. of Canakkale University Astrophysics Research Center,

vol. 3, p. 246, 2003

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slide8

Project’s flow chart: Stage I – selection of the ROSAT hard spectrum sources [VO]. Stage II – tentative radio IDs [VO].Stage III –high resolution radio observations.Stage IV – optical IDs [VO]; . galaxies to be discarded.Stage V – optical spectroscopy.

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Stage I – selection in X-ray from theBright ROSAT Sources Catalogue (1RXS) [W. Voges et al., A&A 349, 389, 1999]

The main selection criterium =

= Motch’s Strip :

0.90 ≤ HR1 ≤ 1.00

0.25 ≤ HR2 ≤ 1.00

[ C. Motch et al., A&A 132, 341, 1998 ]

AND Sources in the Galactic Plane:

|b| < 200

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stage ii tentative identifications in radio surveys
Stage II – tentative identifications in Radio Surveys:
  • NVSS (VLA, D-configuration) 1.4 GHz
  • 87GB/GB6/PMN (single dish) 4.8 GHz

-----&----

radio variability

checking

[GB6] = { [1987GB]2 + [1989GB]2} -2

(J. J. Condon, Private comm.)

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stage ii
Stage II:

The X-ray-Radio cross-identifications

have been made usingCATS:

a major collection of databases gathered and maintained by

S. Trushkin et al. of the Special Astrophysical Observatory

http://cats.sao.ru

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C A T S :► A complete collection of radio catalogs (191).► Multi-source query.► 2MASS & USNO Catalogs (not Charts/Images).► VOTable format – to be implemented soon.http://cats.sao.ru

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c a t s sumss is already there with a multiple position query of course http cats sao ru
C A T S :SUMSS is already there(with a multiple position query,of course).http://cats.sao.ru

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stage iii targeted radio observations with a sub arcsec coordinate precision
Stage III:Targeted radio observations(with a sub-arcsec coordinate precision):
  • VLA

A-configuration, 1.4 & 4.8 GHz

  • ATCA

6-km configuration, 4.8 & 8.6 GHz

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Stage IV:Radio-Optical Identifications by the Digital Sky Surveys (DSS)[obvious galaxies were discarded]

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A Virtual Observatoryof theUS Naval Observatory,Flagstaff Station, Arizona:USNO PMMhttp://www.nofs.navy.mil/projects/pmm/Observables: coordinates; charts; images;B, R, I magnitudes at two epochs, (hence variability); image analysis (star/galaxy); proper motions (!)of ~1,000,000,000objects,release B1.0, 2003.

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USNO PMM:►flexible multiparameter interface;► multidata output.The best, but not perfect: no multisource query.

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Stage V:A moderate resolutionoptical spectroscopy of 60 candidatesbyAAT (4 m)AustraliaBTA (6 m) RussiaVLT (8 m) Chile

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have been observed
Have been observed:
  • ААТ: spectroscopy of12objects
  • BТА: spectroscopy of34
  • VLT : spectroscopy of 6

========================================================

Total: 52

+ 8 objects to be observed

Preliminary results:

===============================================================

Stars 12

Featureless spectra 28

Sy1/Sy2/AGN 9

QSO 3

===============================================================

.

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.

========================================================

Preliminary results:

===============================================================

Stars 12 Active stars=New

Featureless spectra 28 if BL Lacs =New

Sy1/Sy2/AGN 9 =New

QSO 3 =New

===============================================================

.

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========================================================

Preliminary results:

===============================================================

Stars 12

Featureless spectra 28BL Lacs ?

Sy1/Sy2/AGN 9

QSO 3

===============================================================

.

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‘Featureless’ objects28?They all arestar-like (i.e., not extended in optics),bright & hard X-ray emittersandradio sources [due to selection criteria].

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featureless objects 2 8 if galactic they could be a new type of objects
‘Featureless’ objects28If Galactic ––they could beaNEWtype of objects.

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No

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Yes !

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proper motion mcqc j1910 28 ra 0 016 0 002 arcsec y dec 0 010 0 000 arcsec y
PROPER MOTION:↓MCQC J1910+28μRA =–0.016 ± 0.002 arcsec/y μDEC = – 0.010 ± 0.000 arcsec/y

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