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200 papers

More than 500 pulsars are regularly observed with the 76-m Lovell radio telescope at Jodrell Bank Observatory. Precise positional and rotational parameters have been obtained from observations spanning between 6 and 34 years for over 300 of…

Astrophysics · Physics 2007-05-23 G. Hobbs , A. G. Lyne , M. Kramer

Over the past 13 years, the Parkes radio telescope has observed a large number of pulsars using digital filterbank backends with high time and frequency resolution and the capability for Stokes recording. Here we use archival data to…

High Energy Astrophysical Phenomena · Physics 2017-12-27 Simon Johnston , Matthew Kerr

During processing the observations of the intermediate polar 1RXS J180340.0+401214, obtained 26.05.2012 at the 60-cm telescope of the Mt. Suhora observatory (Krakow, Poland), variability of 2MASS J18024395+4003309 was discovered. As this…

Solar and Stellar Astrophysics · Physics 2013-01-01 Ivan L. Andronov , Vitalii V. Breus , Stanislaw Zola

We present the results of our Moon impact flashes detection campaigns performed around the maximum activity period of the Perseid meteor shower in 2012 and 2013. Just one flash produced by a Perseid meteoroid was detected in 2012 because of…

We assess the detectability of tidal disruption events (TDEs) using mock observations from the Mini-SiTian array. We select 100 host galaxy samples from a simulated galaxy catalog based on specific criteria such as redshift, BH mass, and…

The VERITAS Imaging Air Cherenkov Telescope (IACT) array was augmented in 2019 with high-speed focal plane electronics to allow its use for Stellar Intensity Interferometry (SII) observations. Since January 2019, the VERITAS Stellar…

Solar and Stellar Astrophysics · Physics 2021-08-24 David Kieda , Jonathan Davis , Tugdual LeBohec , Mike Lisa , Nolan K. Matthews

We present the results of photometric observations of the mutual phenomena in the system of Galilean satellites obtained during 2014-2015. The observations were performed using the 26-inch refractor, Normal Astrograph, ZA-320 telescope of…

Earth and Planetary Astrophysics · Physics 2016-12-22 M. Yu. Khovritchev , I. S. Izmailov , E. A. Roshchina , D. L. Gorshanov , A. M. Kulikova

We present a multi-epoch, accurate UBVRcIc photometric catalog of 83 symbiotic stars and related objects, measured while calibrating the Henden and Munari (2000, 2001, 2006) photometric sequences around them. The vast majority of the…

Solar and Stellar Astrophysics · Physics 2009-02-27 A. Henden , U. Munari

We initiated digitization of the Moscow collection of astronomical plates using flatbed scanners. Techniques of photographic photometry of the digital images were applied, enabling an effective search for new variable stars. Our search for…

Astrophysics · Physics 2008-10-08 D. M. Kolesnikova , L. A. Sat , K. V. Sokolovsky , S. V. Antipin , N. N. Samus

Presented are the results of a near-IR photometric survey on 1678 stars in the direction of the \rho Ophiuchus (\rho Oph) star forming region using data from the 2MASS Calibration Database. For each target in this sample, up to 1584…

Solar and Stellar Astrophysics · Physics 2015-06-17 J. R. Parks , P. Plavchan , R. J. White , A. H. Gee

This paper presents the results of our extensive search for the bright variable stars in approximately 30000 square degrees of the south sky in the I-band data collected by 9 deg x 9 deg camera of the All Sky Automated Survey between 2002…

Solar and Stellar Astrophysics · Physics 2014-11-06 Monika Sitek , Grzegorz Pojmanski

To better estimate which luminous efficiency ($\tau$) value is compatible with contemporary values of the ionization coefficient ($\beta$), we report a series of simultaneous optical and specular echo radar measurements of low speed…

Earth and Planetary Astrophysics · Physics 2020-08-05 Peter Brown , Robert J. Weryk

We present the results of a massive variability search based on a photometric survey of a six square degree region along the Galactic plane at ($l = 305^\circ$, $b = -0.8^\circ$) and ($l = 330^\circ$, $b = -2.5^\circ$). This survey was…

This paper describes the third part of the photometric data from the 9 x 9 deg ASAS camera monitoring the whole southern hemisphere in V-band. Preliminary list of variable stars based on observations obtained since January 2001 is…

Astrophysics · Physics 2007-05-23 G. Pojmanski , Gracjan Maciejewski

We report our complete database of X-ray eclipse timings of the low mass X-ray binary EXO0748-676 observed by the Rossi X-Ray Timing Explorer (RXTE) satellite. As of this writing we have accumulated 443 full X-ray eclipses, 392 of which…

Astrophysics · Physics 2009-07-22 Michael T. Wolff , Paul S. Ray , Kent S. Wood , Paul L. Hertz

This paper describes the first part of the photometric data from the 9x9 deg ASAS cameras monitoring the whole southern hemisphere in V-band. Data acquisition and reduction pipeline is described and preliminary list of variable stars is…

Astrophysics · Physics 2009-07-09 G. Pojmanski

Results of the first two years of observations using the All Sky Automated Survey prototype camera are presented. More than 140 000 stars in 50 Selected Fields covering 300 sq. degrees were monitored each clear night in the I-band resulting…

Astrophysics · Physics 2009-09-15 Pojmanski , G

The extremely young cluster IC 348 has been monitored photometrically over 5 observing seasons from Dec 1998 to March 2003 in Cousins I with a 0.6 m telescope at Van Vleck Observatory. Twenty-eight periodic variables and 16 irregular…

Astrophysics · Physics 2015-06-24 R. E. Cohen , W. Herbst , E. C. Williams