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1.
A fourth list of point sources from the IRAS Point Source Catalog (PSC) that are optically identified with stars of late spectral
types is given. The list contains data on 41 objects. The identifications were based on the Digital Sky Survey (DSS), the
First Byurakan Survey, blue and red maps of the Palomar Observatory Sky Survey, and infrared fluxes at the wavelengths 12,
25, 60, and 100 μm in the region of +65° ≤ δ ≤ +69° and 05h10m ≤ α ≤ 18h10m. Of the 41 objects, which are given in the IRAS PSC as unidentified sources of infrared emission, 9 are associated with known
stars in existing catalogs while 32 sources remained unidentified in the optical range, one of which is also a source in the
deep IRAS survey (IRAS Serendipitous Source Catalog). The optical coordinates, their departures from the IR coordinates, the
V stellar magnitudes, the color indices CI, and the preliminary spectral subtypes have been determined. The objects have optical
magnitudes in the range of 8m.5-14m.5. Finder charts from the DSS are given for 32 of the objects.
Translated from Astrofizika, Vol. 43, No. 3, pp. 361-368, July–September, 2000. 相似文献
2.
A third list of point sources from the IRAS Point Source Catalog (PSC), optically identified with late-type stars, is given.
The list contains data on 34 objects. The identification was based on the Digitized Sky Survey (DSS), the First Byurakan Survey
(FBS). blue and red maps of the Palomar Observatory Sky Survey, and infrared fluxes at wavelengths of 12, 25, 60, and 100
mm in the regions of +61° ≤ δ ≤ +65°, 06h45m ≤ α ≤ 17h28m and +69° ≤ δ ≤ +73°, 03h50m ≤ α ≤ 18h10m. Of 34 objects given in the IRAS PSC as unidentified sources of infrared radiation, 11 are associated with known stars in
existing catalogs, 6 are objects from the FBS survey of late-type stars, and 17 sources remained unknown in the optical range,
3 of them also being sources in the IRAS Serendipitous Survey Catalog (SSC). The optical coordinates, their departures from
the 1R coordinates, the V magnitudes, the color indices CI, and the preliminary spectral subtypes were determined. The objects
have optical magnitudes in the range of 7h.6-13m.6. Finder charts from the DSS are given for 23 objects.
Translated from Astrofizika, Vol. 43, No. 1, pp. 77-84, January–March, 2000. 相似文献
3.
Part three of optically identified point sources from the IRAS Point Source Catalog contains 113 objects. The identifications
were based on the Digitized Sky Survey (DSS), the First Byurakan Survey, blue and red maps from the Palomar Sky Survey, and
infrared fluxes at 12, 25, 60, and 100 μm in the region of +61° ≤ δ ≤ + 65° and 11h15m ≤ α ≤ 18h35m with an area of 200 sq. deg. Of the 119 sources in this region, 6 could not be identified owing to the absence of optical
counterparts with the given coordinates. For the identified objects we determined their optical coordinates, their departures
from the IR coordinates, and their stellar V magnitudes, color indices (CI), and preliminary types. The objects have optical
magnitudes in the range of 8n–21m. Of the 113 objects, 31 turned out to be stars of spectral types K and M, 1 is a planetary nebula, 2 are candidates to be
quasi- stellar objects, and 79 are galaxies. A list of the 48 nonstellar objects is given. The identified galaxies include
Seyfert candidates, interacting pairs, galaxies with companions, superassociations, etc. The galaxies are in groups in many
cases, and the IR emission may be due to heating of intergalactic matter within a group. Finder charts for these objects from
the DSS are given.
Translated from Astrofizika, Vol. 41, No. 2, pp. 251–262, April-June, 1998. 相似文献
4.
The second portion of optically identified point sources from the IRAS Point Source Catalog contains 104 objects. The identifications
were made on the basis of the Digitized Sky Survey (DSS), the First Byurakan Survey (FBS), blue and red maps of the Palomar
Survey (POSS), and infrared fluxes at wavelengths of 12, 25, 60, and 100 fim in the region of +61 ° ≤ δ ≤ +65°and 50h30m ≤ α ≤ 11h15m with an area of 157 sq. deg. Of the 114 sources in this region, 10 could not be identified because of the absence of the
corresponding optical counterparts with the given coordinates. For the identified objects we determined their optical coordinates,
their departure from the IR coordinates, the stellar V magnitudes, the color indices CI, and the preliminary types. The objects
have optical magnitudes in the range of 8n–21m. Of the 104 objects, 46 turned out to be stars of spectral types K and M, 1 is a planetary nebula, 3 are QSO candidates,
and 54 are galaxies. In the present work we give a list of the 58 nonstellar objects. The identified galaxies include Seyfert
candidates, interacting pairs, galaxies with companions and superassociations, etc. Finder charts for these objects from the
DSS are given.
Translated from Astrofizika, Vol. 40, No. 4, pp. 581–593, October-December, 1997. 相似文献
5.
A 10th list of late-type M and C stars found on plates of the First Byurakan Spectral Sky Survey in the − 11° ≤ δ ≤ − 7° belt
with an area of about 1070 deg2 is given. The list contains data on 169 red stars, 117 of which were found for the first time: 8 are new C stars, 3 are Cstar
candidates, 104 are M stars, 1 is either an M or an S star, and 1 object on the survey plate cannot be classified. Of the
117 objects, 47 are unidentified IRAS sources. A statistical analysis of the objects that are and are not identified with
IRAS sources shows that the identified stars are, with a high probability, brighter and have relatively more massive envelopes.
Two stars were found to have fairly large brightness variability (with an amplitude of at least 6m.O). Gasdust shells are assumed to exist around nine of the IRAS sources. The equatorial coordinates, spectral types, and
stellar magnitudes, determined on Palomar E maps, are given for the selected objects.
Translated from Astrofizika, Vol. 41. No. 4, pp. 545–559, October–December, 1998. 相似文献
6.
A fourth list of optically identified point sources from the IRAS Point Source Catalog, containing 34 nonstellar objects,
is given. The identifications were made on the basis of the Digitized Sky Survey (DSS), the First Byurakan Survey, blue and
red maps from the Palomar Sky Survey (FBS), and infrared fluxes at 12, 25, 60, and 100 μm in the region of +61° ≤ δ ≤ 65°
and 11h15m ≤ α ≤ 18h35m with an area of 200 sq. deg. For the identified objects we determined their optical coordinates, their departures from the
IR coordinates, their stellar V magnitudes, color indices CI, and preliminary types. The optical magnitudes of the objects
are in the range 12m.5-27m. The identified galaxies include Seyfert candidates, interacting pairs, galaxies with companions, superassociations, etc.
The galaxies are encountered in groups in many cases, and the IR emission may be due to heating of intergalactic matter within
a group. Finder charts from the DDS are given for these objects.
Translated from Astrofizika, Vol. 41, No. 3, pp. 359–366, July–September, 1998. 相似文献
7.
Part five of optically identified point sources from the IRAS Point Source Catalog (PSC) contains data on 19 late-type stars.
The identifications were based on the Digitized Sky Survey (DSS), the First Byurakan Survey (FBS), blue and red maps of the
Palomar survey (POSS), and infrared fluxes at 12, 25, 60, and 100 mm in the region of +61° ≤ δ ≤ +65° and 05
h
30
m
≤ α ≤ 18
h
35
m
with an area of 357 sq. deg. Of the 76 objects given in the IRAS PSC as unidentified sources of infrared radiation, 51 are
associated with known stars in existing catalogs, 6 are objects from the FBS of late-type stars, and 19 sources remained unknown
in the optical range. For the identified stars we determined the optical coordinates, their departures from the IR coordinates,
the Vstellar magnitudes, the color indices CI,and the preliminary spectral subtypes. The objects have optical magnitudes in the range of 8
m
−16
m
.Gas-dust shells are assumed to exist around four of the sources. Finder charts from the DSS are given for 19 of the objects.
Translated from Astrofizika, Vol. 42, No. 1, pp. 53–59, January–March, 1999. 相似文献
8.
A. M. Mickaelian 《Astrophysics》2000,43(3):309-321
A fifth list of objects from the BIG (Byurakan-IRAS galaxies) sample is given: 89 galaxies identified with 59 point sources
from the IRAS Point Source Catalog. The identifications were based on the Digital Sky Survey (DSS), the First Byurakan Survey,
blue and red maps from the Palomar Observatory Sky Survey, and infrared fluxes at 12, 25, 60, and 100 mm in the region of+65°
≤ δ ≤69δ and 5h10m ≤ α ≤9h 15m with an area of 96 deg2. For the identified galaxies the optical coordinates, their departures from the IR coordinates, and the stellar V magnitudes,
morphological types, angular sizes, and position angles were determined. The objects have optical magnitudes in the range
of 14m. 1-21m.5 and angular sizes in the range of 2″-47″. The galaxies are mainly spiral in morphology. Compact galaxies and Seyfert candidates,
interacting pairs, “mergers,” galaxies with companions and superassociations, groups of galaxies (including compact ones),
and others are encountered, which shows the importance of these objects for the study of the relationships among the phenomena
of star formation, activity, and interactions. Finder charts from the DSS are given for these objects. New designations and
numbering are introduced for galaxies in the studied sample.
Translated from Astrofizika, Vol. 43, No. 3, pp. 425-441, July– September, 2000.
The NASA/IPAC Extragalactic Database (NED), operated by the Jet Propulsion Laboratory, California Institute of Technology,
under contract with NASA. 相似文献
9.
A list of comparatively faint late M and Carbon type stars detected on the Digitized First Byurakan Survey (DFBS) spectral
plates in the zone with +45° ≤ δ ≤ +49° covering 684 deg2 is presented. Accurate DSS2 positions, USNO-B1.0 B and R magnitudes, 2MASS near-infrared J, H, and Ks photometry, IRAS PSC/FSC fluxes (when available), approximate spectral types, and luminosity class estimates are given for
72 objects. Nine of them are newly confirmed carbon stars and 63 are M-type stars. For seven Mira variables with known pulsation
periods we determined distances of 2 ÷ 8 kpc using a period-luminosity relation. Distances of 17 ÷ 115 pc for five M dwarfs,
classified on the base of detected proper motions, were estimated using a color-luminosity relation. The object FBS 0845+466
is classified as a candidate carbon dwarf with distance r ≈ 72 pc. 相似文献
10.
N. S. Soboleva E. K. Majorova O. P. Zhelenkova A. V. Temirova N. N. Bursov 《Astrophysical Bulletin》2010,65(1):42-59
We use two independent methods to reduce the data of the surveys made with RATAN-600 radio telescope at 7.6 cm in 1988–1999
at the declination of the SS433 source. We also reprocess the data of the “Cold” survey (1980–1981). The resulting RCR (RATAN
COLD REFINED) catalog contains the right ascensions and fluxes of objects identified with those of the NVSS catalog in the
right-ascension interval 7
h
≤ R.A. < 17
h
. We obtain the spectra of the radio sources and determine their spectral indices at 3.94 and 0.5 GHz. The spectra are based
on the data from all known catalogs available from the CATS, Vizier, and NED databases, and the flux estimates inferred from
the maps of the VLSS and GB6 surveys. For 245 of the 550 objects of the RCR catalog the fluxes are known at two frequencies
only: 3.94 GHz (RCR) and 1.4 GHz (NVSS). These are mostly sources with fluxes smaller than 30mJy. About 65% of these sources
have flat or inverse spectra (α > −0.5). We analyze the reliability of the results obtained for the entire list of objects and construct the histograms of
the spectral indices and fluxes of the sources. Our main conclusion is that all 10–15 mJy objects found in the considered
right-ascension interval were already included in the decimeter-wave catalogs. 相似文献
11.
The thirteenth list of faint late M and carbon type stars detected on the plates of the First Byurakan Spectral Sky Survey in zone +1° +13° covering about 3118 sq. degrees is presented. From 285 stars, 161 are newly detected objects: they are 17 carbon stars, 25 carbon star candidates, and 117 M-type stars. The spectral type of two objects is assumed to be between M8 - M9 or late N-subtypes. Among 161 objects, 85 (66 PSC + 19 FSC) are unclassified IRAS sources. Accurate positions, spectral classes, red magnitudes, and color indices are given using several astronomical databases. Finding charts from DSS are given for the most interesting objects. 相似文献
12.
A. M. Mickaelian 《Astrophysics》1997,40(1):1-9
The low-dispersion spectra of the First Byurakan Survey and the red and blue images of the Palomar Observatory Sky Survey
have been used to identify optically 100 infrared sources from the IRAS Point Source Catalog. The work was carried out over
the region 3h 50m ≤ α ≤ 7h 40m and +69° ≤ δ −73° with an area of 75 square degrees. The optical coordinates, their deviations from the infrared coordinates,
V magnitudes, color indices, preliminary classes for all the objects, and a number of remarks on interesting objects are presented.
Three objects were found to be quasars, 36 are galaxies (including Seyferts and an interacting pair), 5 are faint planetary
nebulae, 9 are carbon stars, and 47 are stars of late M subclasses.
Translated fromAstrofizika, Vol. 40, No. 1, pp. 5–18, February, 1997. 相似文献
13.
K. S. Gigoyan H. V. Abrahamyan M. Azzopardi N. Mauron D. Russeil P. Sinamyan 《Astrophysics》2003,46(4):475-488
We present the fourteenth list of faint late M and carbon type stars detected on the plates of the First Byurakan Spectral Sky Survey in the zone +13° +33° covering about 4736 sq. degrees. From 260 stars, 118 are newly detected objects: they are 19 carbon stars, 5 carbon star candidates, and 94 M-type stars. Among 118 detected objects 73( 57 PSC + 16 FSC ) are unclassified IRAS sources. Accurate positions, spectral classes, red magnitudes, color indices, and near-infrared J, H and K photometry are given, using several astronomical databases. Finding charts from DSS are given for the most interesting objects. 相似文献
14.
The eighth list of late-type stars of spectral classes M and C detected on the plates of the First Byurakan Spectral Sky Survey (FBS) in the zone +80 +90° is presented. Of the 79 objects detected, 67 are new discoveries (66 M stars and one carbon star); 16 objects are unidentified IRAS sources. The equatorial coordinates, spectral classes, and magnitudes are given.Translated fromAstrofizika, Vol. 39, No. 4, pp. 523–529, November, 1996. 相似文献
15.
The next list of spectral data on blue stellar objects (BSOs) is presented. 58 FBS objects in a zone with a central declination
δ = + 35° were observed with the 2.6-m telescope at the Byurakan Observatory during 1990–1991. In addition, 3 objects were
observed (3 CCD spectra were obtained) with the BAO 2.6-m and OHP 1.93-m telescopes in 1997–2000 using modern instrumentation.
9 white dwarfs, 47 hot subdwarfs, and 2 HBB stars have been discovered. Spectra of the 10 most interesting objects are given.
__________
Translated from Astrofizika, Vol. 51, No. 2, pp. 277–283 (May 2008). 相似文献
16.
We present preliminary results of an optical-UV survey of the North Celestial Cap (NCCS) based on ∼5% areal coverage. The
NCCS will provide good photometric and astrometric data for the North Celestial Cap region (80°≤δ≤90°). This region, at galactic latitudes from 17°≲b≲37°, is poorly covered by modern CCD-based surveys. The expected number of detected objects in NCCS is ∼1,500,000. We discuss
issues of galactic structure, extinction, and the galaxy clustering in the colour-colour diagrams. 相似文献
17.
We present the seventh list of stars of the late M and C spectral classes taken from the plates of the First Byurakan Spectral Sky Survey (FBS). Data on 24 objects, 2 of which are carbon stars of early subclasses (R-stars), are given for the first time. The spectral membership of two known stars is established. The objects lie in the zone 3
h
40
m
18
h
30
m
and +76° +80°.Translated fromAstrofizika, Vol. 38, No. 3, 1995. 相似文献
18.
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.
__________
Translated from Astrofizika, Vol. 49, No. 3, pp. 391–405 (August 2006). 相似文献
19.
We have studied the correlations between the near-IR and the γ-ray bands using 29 observed γ-ray-loud blazars (16 BL Lac objects
and 13flat-spectrum radio quasars (FSRQs)) with near-IR and γ-ray spectralindices and fluxes. The results show that there
are very strong correlations between near-IR mean spectral index αIR and γ-ray mean spectral index αγ and between near-IR and γ-ray fluxes. Which means that γ-ray radiation from the blazars should be mainly produced by the
synchrotron self-Compton process. In addition, the γ-ray emission of BL Lac objects may be somewhat different from flat-spectrum
radio quasars.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
20.
A fifth list of point sources from the IRAS Point Source Catalog (PSC) that are optically identified with stars of late spectral types is given. The list contains data on 75 objects. The identifications were based on the Digital Sky Survey (DSS), the First Byurakan Survey, blue and red maps of the Palomar Observatory Sky Survey, and infrared fluxes at the wavelengths 12, 25, 60, and 100 m in the regions of +73° +80° and 03h30m 18h30m and of +80° +90° and 00h00m 20h00m. Of the 99 objects, which are given in the IRAS PSC as unidentified sources of infrared emission, 24 are associated with known stars in existing catalogs while 75 sources proved to be unknown in the optical range. The optical coordinates, their departures from the IR coordinates, the V stellar magnitudes, the color indices CI, and the preliminary spectral subtypes have been determined. The objects have optical magnitudes in the range of 6
m
.5-17
m
.2. Finder charts from the DSS are given for the 69 new objects. 相似文献