Next: Evolutionary Scenarios of Binary Up: No Title Previous: Introduction . After the pioneer paper by Zeldovich (1964)[ 217 ] it was largely recognized that the most spectacular observational appearances of compact stars must occur when they are in a binary system. ... So here we limit ourselves by briefly sketching out different kinds of presently known binaries that contain compact stars. The list of different types of binary systems with compact stars is presented in Table 1 . ...

Next: Radial velocity of the Up: Optical spectrum of IRAS04296 Previous: Observations and spectra reduction . ... However, molecular emission features are only very rarely observed in the optical spectra of PPNe. ... On the other hand, it is well known that cometary nuclei spectra show prominent Swan band emission. In both spectra of IRAS04296 we have discovered strong emission in the (0;0) and (0;1) bands of the Swan system of the molecule. ... Now consider the case of IRAS04296. ...

Latest X-ray observations of - ray loud binary systems . - ray loud binary systems Maria Chernyakova (DIAS, Ireland/ASC FIAN, Moscow) Andrii Neronov (ISDC, Switzerland) Yasunobu Uchiyama, Tadayuki Takahashi (JAXA, Japan) Felix Aharonian (DIAS, Ireland/MPKP, Germany) 1 Known - ray loud binary systems . - ray loud binary systems Only 3 binary HESS J0632+057 ­ a new binary system? ... Softening (hardening) of the X-ray spectrum on a day scale in the disk. ...

Gas and Dark Maer in the Sculptor Group Tobias Westmeier (ICRAR/UWA) Observations We have observed the nearest galaxies of the Sculptor group in neutral hydrogen (H) emission with the Australia Telescope Compact Array (ATCA) to Study the kinematics and dynamics of the galaxies , Search for extra-planar gas and "missing satellites". NGC 300 Westmeier, Braun Koribalski 2011, MNRAS, 410, 2217 Main results: Extended, twisted H disc (Fig. ... H mass of the extraplanar gas clouds near NGC 55. ...

There is often dust associated with ionized regions. Compact HII regions usually have associated dust from a molecular cloud in which the massive star is being "born". ... For such stars the dust is not produced by the star, and a variety of dust features are observed. The planetary nebulae also usually have associated dust from the previous stage of evolution where they were either carbon stars or M-type giants. ... The feature near 11.5 microns in the IC 418 spectrum may be due to SiC dust. ...

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... 227Wink This paper containes an investigation of 91 sources which appear to be point sources when observed with the angular resolution of the 100-m telescope at 4.9 GHz, teta_a = 2.6', and which we expected to be HII regions. The basic search list was prepared from the 4.9 GHz survey of the galactic plane by Altenhoff et al. ... In the present paper we list 4.9 GHz flux densities only for sources for sources for which we present new observations. ... source structure indicated . ...

... We will consider the rms, (K), for observations with a receiver of system temperature, T , frequency resolution, per polarization, and total integration time per observing cycle, . ... For ``in-band'' frequency switching, the line under investigation is always in the observing band. ... Position Switching or ``Out-of-Band'' Frequency Switching: Here the line is only observed for one half of the time, with noise being present all of the time. ...

... During the analysis of the surveys carried out on RATAN-600, it was found that almost one fifth of the detected sources shows significant radio flux variations. ... We used the data from "Cold" radio surveys carried out with RATAN-600 in 1980-1994 to search for radio sources with significant flux variability. ... On possibility of detection of variable sources using the data of Cold surveys carried out on RATAN-600. ... Detection of Variable Sources Using the Data of "Cold" Surveys. ...