Zobrazeno 1 - 10
of 752
pro vyhledávání: '"Kudritzki, R. P."'
Autor:
Taormina, Mónica, Kudritzki, R. -P., Pilecki, B., Pietrzyński, G., Thompson, I. B., Puls, J., Górski, M., Zgirski, B., Graczyk, D., Gieren, W., Hajdu, G.
We present the results from a complex study of an eclipsing O-type binary (Aa+Ab) with the orbital period $P_{A}=3.2254367$ days, that forms part of a higher-order multiple system in a configuration (A+B)+C. We derived masses of the Aa+Ab binary $M_{
Externí odkaz:
http://arxiv.org/abs/2404.02970
Autor:
da Silva, R., D'Orazi, V., Palla, M., Bono, G., Braga, V. F., Fabrizio, M., Lemasle, B., Spitoni, E., Matteucci, F., Jonsson, H., Kovtyukh, V., Magrini, L., Bergemann, M., Dall'Ora, M., Ferraro, I., Fiorentino, G., Francois, P., Iannicola, G., Inno, L., Kudritzki, R. -P., Matsunaga, N., Monelli, M., Nonino, M., Sneden, C., Storm, J., Thevenin, F., Tsujimoto, T., Zocchi, A.
Publikováno v:
A&A 678, A195 (2023)
Classical Cepheids (CCs) are solid distance indicators and tracers of young stellar populations. Our aim is to provide iron, oxygen, and sulfur abundances for the largest and most homogeneous sample of Galactic CCs ever analyzed. The current sample c
Externí odkaz:
http://arxiv.org/abs/2308.01928
Autor:
Project, The Araucaria, Pietrzyński, G., Gieren, W., Karczmarek, P., Górski, M., Zgirski, B., Wielgórski, P., Breuval, L., Suchomska, K., Gallenne, A., Kervella, P., Hajdu, G., Pilecki, B., Storm, J., Nardetto, N., Kudritzki, R. P., Taormina, M., Bresolin, F., Smolec, R., Narloch, W., Gałan, C., Lewis, M., Chini, R.
Publikováno v:
Published on behalf of the Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences. Editors: P. Karczmarek, M. Lewis, G. Pietrzy\'nski. Publisher: Wydawnictwo Aleksander, Pu{\l}tusk 2021. ISBN: 978-83-66856-07-3
The book consists of a number of short articles that present achievements of the Araucaria members, collaborators, and friends, in various aspects of distance determinations and related topics. It celebrates the 20-year anniversary of the Araucaria P
Externí odkaz:
http://arxiv.org/abs/2305.17247
Publikováno v:
Astronomy and Astrophysics, Volume 661, L1, May 2022
Red supergiant (RSGs) are cool massive stars in a late phase of their evolution when the stellar envelope becomes fully convective. They are the brightest stars in the universe at infrared light and can be detected in galaxies far beyond the Local Gr
Externí odkaz:
http://arxiv.org/abs/2205.05156
Autor:
da Silva, R., Crestani, J., Bono, G., Braga, V. F., D'Orazi, V., Lemasle, B., Bergemann, M., Dall'Ora, M., Fiorentino, G., François, P., Groenewegen, M. A. T., Inno, L., Kovtyukh, V., Kudritzki, R. -P., Matsunaga, N., Monelli, M., Pietrinferni, A., Porcelli, L., Storm, J., Tantalo, M., Thévénin, F.
Publikováno v:
A&A 661, A104 (2022)
Classical Cepheids are the most popular distance indicators and tracers of young stellar populations. The key advantage is that they are bright and they can be easily identified in Local Group and Local Volume galaxies. Their evolutionary and pulsati
Externí odkaz:
http://arxiv.org/abs/2202.07945
Autor:
Taormina, Mónica, Pietrzyński, G., Pilecki, B., Kudritzki, R. -P., Thompson, I. B., Graczyk, D., Gieren, W., Nardetto, N., Górski, M., Suchomska, K., Zgirski, B., Wielgórski, P., Karczmarek, P., Narloch, W.
In this first paper of the series we describe our project to calibrate the distance determination method based on early-type binary systems. The final objective is to measure accurate, geometrical distances to galaxies beyond the Magellanic Clouds wi
Externí odkaz:
http://arxiv.org/abs/1910.08111
Autor:
Liu, T., Gezari, S., Ayers, M., Burgett, W., Chambers, K., Hodapp, K., Huber, M. E., Kudritzki, R. -P., Metcalfe, N., Tonry, J., Wainscoat, R., Waters, C.
We present a systematic search for periodically varying quasar and supermassive black hole binary (SMBHB) candidates in the Pan-STARRS1 Medium Deep Survey. From $\sim9,000$ color-selected quasars in a $\sim50$ deg$^{2}$ sky area, we initially identif
Externí odkaz:
http://arxiv.org/abs/1906.08315
Autor:
Boe, Benjamin, Jedicke, Robert, Meech, Karen J., Wiegert, Paul, Weryk, Robert J., Chambers, K. C., Denneau, L., Kaiser, N., Kudritzki, R. P., Magnier, E. A., Wainscoat, R. J., Waters, C.
We introduce a new technique to estimate the comet nuclear size frequency distribution (SFD) that combines a cometary activity model with a survey simulation and apply it to 150 long period comets (LPC) detected by the Pan-STARRS1 near-Earth object s
Externí odkaz:
http://arxiv.org/abs/1905.13458
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:
Assef, R. J., Prieto, J. L., Stern, D., Cutri, R. M., Eisenhardt, P. R. M., Graham, M. J., Jun, H. D., Rest, A., Flewelling, H. A., Kaiser, N., Kudritzki, R. -P., Waters, C.
Publikováno v:
The Astrophysical Journal, Vol. 866, 26 (2018)
Recently Assef et al.(2018) presented two catalogs of AGN candidates over 30,093 deg^2 selected from the Wide-field Infrared Survey Explorer (WISE) observations. From their most reliable sample, Assef et al. (2018) identified 45 AGN candidates with t
Externí odkaz:
http://arxiv.org/abs/1807.07985