Spectral Camera for 2.6 m Telescope of the Byurakan Observatory

Movsessian, T. A.; Boulesteix, J.; Gach, Jean-Luc; Zaratsian, S. V.; Balayan, S. K.; Zakarian, M.

doi:10.1515/astro-2000-0439

Cited by 10 publications

(9 citation statements)

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“…The only absorption galaxy is denoted by "Abs." Table 3 far infrared (L FIR ) luminosities in units of the sun's luminosity, (15,16) ) were determined, the diagnostic diagrams are not shown here. An approximate classification is given for those objects with relatively poor quality spectra.…”

Section: Observational Resultsmentioning

confidence: 99%

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Spectral study of BIG objects on the 2.6-m telescope at the Byurakan astrophysical observatory

Sargsyan

Mickaelian

2006

Astrophysics

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Results of spectral observations of 45 objects from the BIG sample (corresponding to 35 IRAS sources) obtained on the 2.6-m telescope at the BAO are reported. Emission lines are observed for 42 galaxies, 1 object is an absorption galaxy, and 2 turned out to be stars. The red shifts are determined, the radial velocities, distances, sizes, and absolute stellar magnitudes are calculated, the parameters of the spectral lines are determined, the objects are classified according to their activity type, and the IR and far IR luminosities are calculated. Of the 42 emission galaxies, 1 was type Sy2, 2 were LINERs, 1 was an AGN (Sy2 or LINER), 4 were composite, 25 were HII (including 6 with nuclear star-formation activity), and 9 were Em of undetermined type (3 of which may be AGN). Calculations show that 23 of the objects are LIG. A physical coupling is discovered for 9 multiple systems. Spectra of some of the galaxies are shown.

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Section: Observational Resultsmentioning

confidence: 99%

“…The observations were made during 1998-2000 on the 2.6-m telescope at the Byurakan Astrophysical Observatory (BAO) with the ByuFOSC-2 spectral camera [16] mounted at the primary focus. A 1060×1028 pixel Thomson CCD with a pixel size of 19x19 mm was used.…”

Section: Observations and Processingmentioning

confidence: 99%

Spectral study of BIG objects on the 2.6-m telescope at the Byurakan astrophysical observatory

Sargsyan

Mickaelian

2006

Astrophysics

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“…The spectral cameras ByuFOSC-2 [7] and SCORPIO [8], mounted at the primary focus of the telescope, were used. During operation with the ByuFOSC-2, a CCD camera with a 1060x1028 pixel Thomson detector element was used.…”

Section: Observationsmentioning

confidence: 99%

Spectral and morphological studies of an “infrared” nebula in the region of Cyg OB7

et al. 2007

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Spectral and morphological studies of an infrared nebula in the neighborhood of Cyg OB7 discovered in 2007 are reported. It is shown that over the last several years the brightness and shape of the nebula have changed significantly. Spectral observations of the nebula made with the 2.6-m telescope at the Byurakan Observatory in 2004 and 2005 reveal the existence of a faint trace of continuum spectrum, indicating the existence of a star inside the dark cloud. Classification of these spectra shows that over one year the star's spectral class changed from late G to early K. It is also shown that the absorption in the direction of the nebula is as high as 8 m -10 m .

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“…The observations on the BAO-2.6 in 1998-2000 were made at the primary focus using the ByuFOSC-2 camera [22] and a Thomson 1060x1028 pixel CCD with a 19×19 mm pixel size. The spatial resolution was ~0.66"/pixel.…”

Section: Observationsmentioning

confidence: 99%

Spectral observations of blue stellar objects from FBS in the zone δ = +43°

Sinamian

Mickaelian

2006

Astrophysics

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Results of spectral observations of blue stellar objects from the FBS are presented for the purpose of classifying them, discovering new interesting objects, and studying the FBS sample as a whole. 99 FBS objects in the band with central declination δ = +43° were observed on the 2.6-m telescope at the Byurakan Observatory in 1987-1991 and have been digitized using a professional scanner and processed by MIDAS in a way similar to CCD spectra. 12 objects were also observed with the BAO-2.6 and OHP-1.93 telescopes using modern techniques during 1997-2000; some were repeated observations for confirming or correcting the classifications. A new planetary nebula, 7 white dwarfs, 78 hot subdwarfs, 9 HBB stars, and 6 stars in classes F-G were discovered. Proper motions in the range 57-84 mas/year were obtained for three stars (DA, DAB, and sdB). Three stars (a white dwarf and two subdwarfs) are identified with x-ray sources. The spectra of the 30 most interesting objects are given.

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Spectral Camera for 2.6 m Telescope of the Byurakan Observatory

Cited by 10 publications

References 0 publications

Spectral study of BIG objects on the 2.6-m telescope at the Byurakan astrophysical observatory

Spectral study of BIG objects on the 2.6-m telescope at the Byurakan astrophysical observatory

Spectral and morphological studies of an “infrared” nebula in the region of Cyg OB7

Spectral observations of blue stellar objects from FBS in the zone δ = +43°

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