Zobrazeno 1 - 10
of 791
pro vyhledávání: '"Kudritzki, R."'
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:
Mazzucchelli, C., Bañados, E., Venemans, B. P., Decarli, R., Farina, E. P., Walter, F., Eilers, A.-C., Rix, H.-W., Simcoe, R., Stern, D., Fan, X., Schlafly, E., Rosa, G. De, Hennawi, J., Chambers, K. C., Greiner, J., Burgett, W., Draper, P. W., Kaiser, N., Kudritzki, R.-P., Magnier, E., Metcalfe, N., Waters, C., Wainscoat, R. J.
Quasars are galaxies hosting accreting supermassive black holes; due to their brightness, they are unique probes of the early universe. To date, only a few quasars have been reported at z > 6.5 (< 800 Myr after the big bang). In this work, we present
Externí odkaz:
http://hdl.handle.net/10150/626178
http://arizona.openrepository.com/arizona/handle/10150/626178
http://arizona.openrepository.com/arizona/handle/10150/626178
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
Autor:
Bañados, E., Venemans, B. P., Decarli, R., Farina, E. P., Mazzucchelli, C., Walter, F., Fan, X., Stern, D., Schlafly, E., Chambers, K. C., Rix, H-W., Jiang, L., McGreer, I., Simcoe, R., Wang, F., Yang, J., Morganson, E., Rosa, G. De, Greiner, J., Baloković, M., Burgett, W. S., Cooper, T., Draper, P. W., Flewelling, H., Hodapp, K. W., Jun, H. D., Kaiser, N., Kudritzki, R.-P., Magnier, E. A., Metcalfe, N., Miller, D., Schindler, J.-T., Tonry, J. L., Wainscoat, R. J., Waters, C., Yang, Q.
Luminous quasars at z > 5.6 can be studied in detail with the current generation of telescopes and provide us with unique information on the first gigayear of the universe. Thus far, these studies have been statistically limited by the number of quas
Externí odkaz:
http://hdl.handle.net/10150/622336
http://arizona.openrepository.com/arizona/handle/10150/622336
http://arizona.openrepository.com/arizona/handle/10150/622336
Autor:
Lunnan, R., Chornock, R., Berger, E., Milisavljevic, D., Jones, D. O., Rest, A., Fong, W., Fransson, C., Margutti, R., Drout, M. R., Blanchard, P. K., Challis, P., Cowperthwaite, P. S., Foley, R. J., Kirshner, R. P., Morrell, N., Riess, A. G., Roth, K. C., Scolnic, D., Smartt, S. J., Smith, K. W., Villar, V. A., Chambers, K. C., Draper, P. W., Huber, M. E., Kaiser, N., Kudritzki, R.-P., Magnier, E. A., Metcalfe, N., Waters, C.
We present photometry and spectroscopy of PS1-14bj, a hydrogen-poor superluminous supernova (SLSN) at redshift z = 0.5215 discovered in the last months of the Pan-STARRS1 Medium Deep Survey. PS1-14bj stands out because of its extremely slow evolution
Externí odkaz:
http://hdl.handle.net/10150/624068
http://arizona.openrepository.com/arizona/handle/10150/624068
http://arizona.openrepository.com/arizona/handle/10150/624068
Recent studies of massive O-type stars present clear evidences of inhomogeneous and clumped winds. O-type (H-rich) central stars of planetary nebulae (CSPNs) are in some ways the low mass–low luminosity analogous of those massive stars. In this con
Externí odkaz:
http://opus.kobv.de/ubp/volltexte/2008/1780/
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