Zobrazeno 1 - 10
of 300
pro vyhledávání: '"Cieslinski, D."'
Autor:
Oliveira, A. S., Rodrigues, C. V., Cieslinski, D., Jablonski, F. J., Silva, K. M. G., Almeida, L. A., Rodriguez-Ardila, A., Palhares, M. S.
Publikováno v:
AJ, 153, 144 (2017)
The increasing number of synoptic surveys made by small robotic telescopes, such as the photometric Catalina Real-Time Transient Survey (CRTS), represents a unique opportunity for the discovery of variable sources and improves the statistical samples
Externí odkaz:
http://arxiv.org/abs/1608.00650
Autor:
Silva, K. M. G, Rodrigues, C. V., Oliveira, A. S., Almeida, L. A., Cieslinski, D., Costa, J. E. R., Jablonski, F. J.
This study confirms MLS110213:022733+130617 as a new eclipsing polar. We performed optical spectroscopic, polarimetric and photometric follow-up of this variable source identified by the Catalina Real Time Transient Survey. Using the mid-eclipse time
Externí odkaz:
http://arxiv.org/abs/1502.00014
Close Binary Supersoft X-ray Sources (CBSS) are considered strong candidates to SN Ia progenitors, but very few CBSS are known in our Galaxy. The galactic counterparts of the CBSS may be the V Sge stars, not detected in X-rays due to the strong absor
Externí odkaz:
http://arxiv.org/abs/1408.1982
Autor:
Silva, K. M. G., Rodrigues, C. V., Costa, J. E. R., Cieslinski, D., Almeida, L. A., Magalhães, V. S.
Publikováno v:
Revista Univap Especial, v. 19, n. 34 (2013)
In this work, we present the first results of a study of a new sample of 7 polar candidates from polarimetric data obtained at the Pico dos Dias / LNA observatory. From the four polars analysed so far, we confirm the presence of high and variable pol
Externí odkaz:
http://arxiv.org/abs/1401.7862
Autor:
Silva, K. M. G., Rodrigues, C. V., Oliveira, A. S., Almeida, L. A., Cieslinski, D., Costa, J. E. R., Jablonski, F. J.
We present new data that confirm MLS110213:022733+130617 as a new eclipsing polar. Some system properties were estimated.
Comment: Proceedings of the XIV Latin American Regional IAU Meeting - RevMexAA
Comment: Proceedings of the XIV Latin American Regional IAU Meeting - RevMexAA
Externí odkaz:
http://arxiv.org/abs/1401.8281
Autor:
Silva, K. M. G., Rodrigues, C. V., Costa, J. E. R., de Souza, C. A., Cieslinski, D., Hickel, G. R.
The viewing geometry of the polar CP Tuc that better explains its optical and X-ray light curves is controversial. Previous modelling of white-light polarimetric data considered the partial self-eclipse of an extended inhomogeneous emitting region. A
Externí odkaz:
http://arxiv.org/abs/1304.2605
Autor:
Rodrigues, C. V., Jablonski, F. J., Taylor, K., Dominici, T., Laporte, R., Pereyra, A., Strauss, C., Magalhaes, A. M., Assafin, M., Carciofi, A., Costa, J. E. R., Cieslinski, D., Franco, G., Kanaan, A., Milone, A., Silva, K. M. G.
We present the basic concept of a new astronomical instrument: SPARC4 - Simultaneous Polarimeter and Rapid Camera in 4 bands. SPARC4 combines in one instrument: (i) photometric and polarimetric modes; (ii) sub-second time-resolution in photometric mo
Externí odkaz:
http://arxiv.org/abs/1108.3455
Publikováno v:
2010, IBVS 5957
We present time-resolved spectroscopy of the polar RBS0324(=1RXS J023052.9-684203) spanning more than one orbital cycle. The emission lines present complex and variable profiles. Radial velocities were determined for the HeII4686 and Hbeta emission l
Externí odkaz:
http://arxiv.org/abs/1102.3371
Autor:
Silva, K. M. G., Rodrigues, C. V., Jablonski, F. J., D'Amico, F., Cieslinski, D., De Almeida, R. Baptista And L. A.
Publikováno v:
2011, INFORMATION BULLETIN ON VARIABLE STARS, 5971
2MASS J09440940-5617117 was identified as a cataclysmic variable in 2007 by its spectrum. In this article we present optical differential photometry in the Rc band obtained using the 0.6-m telescope at Observatorio do Pico dos Dias/Brazil. The comple
Externí odkaz:
http://arxiv.org/abs/1102.2809
Autor:
Rodrigues, C. V., Costa, J. E. R., Silva, K. M. G., de Souza, C. A., Cieslinski, D., Hickel, G. R.
CP Tuc (AX J2315-592) is a polar for which two accretion geometries have been put forward. They differ in the location of the accretion column on the white-dwarf surface. In this study, we present new multiband optical photometric and polarimetric da
Externí odkaz:
http://arxiv.org/abs/1101.5554