Zobrazeno 1 - 10
of 246
pro vyhledávání: '"Kołaczkowski Z"'
We present the results of the $UBVI_C$ variability survey in the young open cluster NGC 6611 based on observations obtained during 34 nights spanning one year. In total, we found 95 variable stars. Most of these stars are classified as periodic and i
Externí odkaz:
http://arxiv.org/abs/2302.03628
Autor:
Pieńkowski, D., Gałan, C., Tomov, T., Gazeas, K., Wychudzki, P., Mikołajewski, M., Kubicki, D., Staels, B., Zoła, S., Pakońska, P., Dȩbski, B., Kundera, T., Ogłoza, W., Dróżdż, M., Baran, A., Winiarski, M., Siwak, M., Dimitrov, D., Kjurkchieva, D., Marchev, D., Armiński, A., Miller, I., Kołaczkowski, Z., Moździerski, D., Zahajkiewicz, E., Bruś, P., Pigulski, A., Smela, T., Conseil, E., Boyd, D., Conidis, G. J., Plauchu-Frayn, I., Heras, T. A., Kardasis, E., Biskupski, M., Kneip, R., Hambálek, L., Pribulla, T., Kundra, E., Nedoroščik, J., Lopatovský, J., Garai, Z., Rodriguez, D., Kamiński, T., Dubois, F., Logie, L., Blanco, A. Capetillo, Kankiewicz, P., Świerczyński, E., Martignoni, M., Sergey, I., Qvam, J. Kare Trandem, Semkov, E., Ibryamov, S., Peneva, S., Carballo, J. -L. Gonzalez, Ribeiro, J., Dean, S., Apostolovska, G., Donchev, Z., Corp, L., McDonald, P., Rodriguez, M., Sanchez, A., Wiersema, K., Menke, J., Richardson, N.
Context. EE Cep is one of few eclipsing binary systems with a dark, dusty disk around an invisible object similar to {\epsilon} Aur. The system is characterized by grey and asymmetric eclipses every 5.6 yr, with a significant variation in their photo
Externí odkaz:
http://arxiv.org/abs/2001.05891
Autor:
Moździerski, D., Pigulski, A., Kołaczkowski, Z., Michalska, G., Kopacki, G., Carrier, F., Walczak, P., Narwid, A., Stęślicki, M., Fu, J. -N., Jiang, X. -J., Zhang, Ch., Jackiewicz, J., Telting, J., Morel, T., Saesen, S., Zahajkiewicz, E., Bruś, P., Śródka, P., Vučković, M., Verhoelst, T., Van Helshoecht, V., Lefever, K., Gielen, C., Decin, L., Vanautgaerden, J., Aerts, C.
Publikováno v:
A&A 632, A95 (2019)
Asteroseismology offers the possibility of probing stellar interiors and testing evolutionary and seismic models. Precise photometry and spectroscopy obtained during multi-site campaigns on young open clusters allows discovering rich samples of pulsa
Externí odkaz:
http://arxiv.org/abs/1910.11873
Autor:
Narloch, W., Pietrzyński, G., Kołaczkowski, Z., Smolec, R., Górski, M., Kubiak, M., Udalski, A., Soszyński, I., Graczyk, D., Gieren, W., Karczmarek, P., Zgirski, B., Wielgórski, P., Suchomska, K., Pilecki, B., Taormina, M., Kałuszyński, M.
We present candidates for non-pulsating stars lying in the classical Cepheid instability strip based on OGLE photometric maps combined with Str\"omgren photometry obtained with the 4.1-m SOAR telescope, and Gaia DR2 data in four fields in the Large M
Externí odkaz:
http://arxiv.org/abs/1908.00447
Autor:
Mennickent, R. E., Cabezas, M., Djurašević, G., Rivinius, T., Hadrava, P., Poleski, R., Kołaczkowski, Z., Soszyński, I., Celedón, L., Astudillo-Defru, N., Raj, A., Fernández-Trincado, J. G., Schmidtobreick, L., Tappert, C., Neustroev, V., Porritt, I.
OGLE-LMC-DPV-065 is an interacting binary whose double-hump long photometric cycle remains hitherto unexplained. We analyze photometric time series available in archive datasets spanning 124 years and present the analysis of new high-resolution spect
Externí odkaz:
http://arxiv.org/abs/1905.04231
Autor:
Suchomska, K., Graczyk, D., Pietrzyński, G., Gieren, W., Ostrowski, J., Smolec, R., Tkachenko, A., Górski, M., Karczmarek, P., Wielgórski, P., Zgirski, B., Thompson, I. B., Villanova, S., Pilecki, B., Taormina, M., Kołaczkowski, Z., Narloch, W., Soszyński, I.
Publikováno v:
2019, A&A, 621, A93
Aim: Our aim is to obtain high-accuracy measurements of the physical and orbital parameters of two evolved eclipsing binary systems, and to use these measurements to study their evolutionary status. We also aim to derive distances to the systems by u
Externí odkaz:
http://arxiv.org/abs/1904.04879
Autor:
Pietrzynski, G., Graczyk, D., Gallenne, A., Gieren, W., Thompson, I. B., Pilecki, B., Karczmarek, P., Gorski, M., Suchomska, K., Taormina, M., Zgirski, B., Wielgorski, P., Kolaczkowski, Z., Konorski, P., Villanova, S., Nardetto, N., Kervella, P., Bresolin, F., Kudritzki, R. P., Storm, J., Smolec, R., Narloch, W.
In the era of precision cosmology, it is essential to empirically determine the Hubble constant with an accuracy of one per cent or better. At present, the uncertainty on this constant is dominated by the uncertainty in the calibration of the Cepheid
Externí odkaz:
http://arxiv.org/abs/1903.08096
Autor:
Wyrzykowski, Łukasz, Mróz, P., Rybicki, K. A., Gromadzki, M., Kołaczkowski, Z., Zieliński, M., Zieliński, P., Britavskiy, N., Gomboc, A., Sokolovsky, K., Hodgkin, S. T., Abe, L., Aldi, G. F., AlMannaei, A., Altavilla, G., Qasim, A. Al, Anupama, G. C., Awiphan, S., Bachelet, E., Bakıs, V., Baker, S., Bartlett, S., Bendjoya, P., Benson, K., Bikmaev, I. F., Birenbaum, G., Blagorodnova, N., Blanco-Cuaresma, S., Boeva, S., Bonanos, A. Z., Bozza, V., Bramich, D. M., Bruni, I., Burenin, R. A., Burgaz, U., Butterley, T., Caines, H. E., Caton, D. B., Novati, S. Calchi, Carrasco, J. M., Cassan, A., Cepas, V., Cropper, M., Chruślińska, M., Clementini, G., Clerici, A., Conti, D., Conti, M., Cross, S., Cusano, F., Damljanovic, G., Dapergolas, A., D'Ago, G., de Bruijne, J. H. J., Dennefeld, M., Dhillon, V. S., Dominik, M., Dziedzic, J., Ereceantalya, O., Eselevich, M. V., Esenoglu, H., Eyer, L., Jaimes, R. Figuera, Fossey, S. J., Galeev, A. I., Grebenev, S. A., Gupta, A. C., Gutaev, A. G., Hallakoun, N., Hamanowicz, A., Han, C., Handzlik, B., Haislip, J. B., Hanlon, L., Hardy, L. K., Harrison, D. L., van Heerden, H. J., Hoette, V. L., Horne, K., Hudec, R., Hundertmark, M., Ihanec, N., Irtuganov, E. N., Itoh, R., Iwanek, P., Jovanovic, M. D., Janulis, R., Jelínek, M., Jensen, E., Kaczmarek, Z., Katz, D., Khamitov, I. M., Kilic, Y., Klencki, J., Kolb, U., Kopacki, G., Kouprianov, V. V., Kruszyńska, K., Kurowski, S., Latev, G., Lee, C-H., Leonini, S., Leto, G., Lewis, F., Li, Z., Liakos, A., Littlefair, S. P., Lu, J., Manser, C. J., Mao, S., Maoz, D., Martin-Carrillo, A., Marais, J. P., Maskoliūnas, M., Maund, J. R., Meintjes, P. J., Melnikov, S. S., Ment, K., Mikołajczyk, P., Morrell, M., Mowlavi, N., Moździerski, D., Murphy, D., Nazarov, S., Netzel, H., Nesci, R., Ngeow, C. -C., Norton, A. J., Ofek, E. O., Pakstienė, E., Palaversa, L., Pandey, A., Paraskeva, E., Pawlak, M., Penny, M. T., Penprase, B. E., Piascik, A., Prieto, J. L., Qvam, J. K. T., Ranc, C., Rebassa-Mansergas, A., Reichart, D. E., Reig, P., Rhodes, L., Rivet, J. -P., Rixon, G., Roberts, D., Rosi, P., Russell, D. M., Sanchez, R. Zanmar, Scarpetta, G., Seabroke, G., Shappee, B. J., Schmidt, R., Shvartzvald, Y., Sitek, M., Skowron, J., Śniegowska, M., Snodgrass, C., Soares, P. S., van Soelen, B., Spetsieri, Z. T., Stankeviciūtė, A., Steele, I. A., Street, R. A., Strobl, J., Strubble, E., Szegedi, H., Ramirez, L. M. Tinjaca, Tomasella, L., Tsapras, Y., Vernet, D., Villanueva Jr., S., Vince, O., Wambsganss, J., van der Westhuizen, I. P., Wiersema, K., Wium, D., Wilson, R. W., Yoldas, A., Zhuchkov, R. Ya., Zhukov, D. G., Zdanavicius, J., Zoła, S., Zubareva, A.
Publikováno v:
A&A 633, A98 (2020)
Gaia16aye was a binary microlensing event discovered in the direction towards the northern Galactic disc and was one of the first microlensing events detected and alerted to by the Gaia space mission. Its light curve exhibited five distinct brighteni
Externí odkaz:
http://arxiv.org/abs/1901.07281
Autor:
Moździerski, D., Pigulski, A., Kołaczkowski, Z., Michalska, G., Kopacki, G., Narwid, A., Stęślicki, M., Zahajkiewicz, E., Fu, J., Jiang, X., Zhang, Ch., Jackiewicz, J., Telting, J., Morel, T., Śródka, P., Bruś, P., Carrier, F.
NGC 6910 is the northern hemisphere open cluster known to be rich in $\beta$ Cephei-type stars. Using four-season photometry obtained in Bia\l k\'ow (Poland) and Xinglong (China) observatories, we performed variability survey of NGC 6910. As the resu
Externí odkaz:
http://arxiv.org/abs/1808.02886
Autor:
Pigulski, A., Baran, A., Bzowski, M., Cugier, H., Czerny, B., Daszynska-Daszkiewicz, J., Dziembowski, W., Handler, G., Kolaczkowski, Z., Krolikowska, M., Krzesinski, J., Maciejewski, G., Michalska, G., Molenda-Zakowicz, J., Moskalik, P., Niedzielski, A., Niemczura, E., Ostrowski, J., Pamyatnykh, A., Ratajczak, M., Rucinski, S., Siwak, M., Smolec, R., Szutowicz, S., Tomov, T., Wyrzykowski, L., Zola, S., Sarna, M.
Time-series photometry from space in the ultraviolet can be presently done with only a few platforms, none of which is able to provide wide-field long-term high-cadence photometry. We present a concept of UVSat, a twin space telescope which will be c
Externí odkaz:
http://arxiv.org/abs/1711.10366