Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Taormina, Mónica"'
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:
Pilecki, Bogumił, Thompson, Ian B., Espinoza-Arancibia, Felipe, Hajdu, Gergely, Gieren, Wolfgang, Taormina, Mónica, Pietrzyński, Grzegorz, Narloch, Weronika, Bono, Giuseppe, Gallenne, Alexandre, Kervella, Pierre, Wielgórski, Piotr, Zgirski, Bartłomiej, Graczyk, Dariusz, Karczmarek, Paulina, Evans, Nancy R.
Publikováno v:
A&A 686, A263 (2024)
Binary Cepheids with giant companions are crucial for studying the physical properties of Cepheid variables, providing the best means to measure their masses. Systems composed of two Cepheids are even more important but to date, only one such system
Externí odkaz:
http://arxiv.org/abs/2403.12390
Autor:
Zgirski, Bartłomiej, Pietrzyński, Grzegorz, Górski, Marek, Gieren, Wolfgang, Wielgórski, Piotr, Karczmarek, Paulina, Hajdu, Gergely, Lewis, Megan, Chini, Rolf, Graczyk, Dariusz, Kałuszyński, Mikołaj, Narloch, Weronika, Pilecki, Bogumił, García, Gonzalo Rojas, Suchomska, Ksenia, Taormina, Mónica
We present new period-luminosity and period-luminosity-metallicity relations for Galactic RR Lyrae stars based on a sample of 28 pulsators located at distances up to $1.5$ kpc from the Sun. Near-infrared photometry was obtained at the Cerro Armazones
Externí odkaz:
http://arxiv.org/abs/2305.09414
Autor:
Pilecki, Bogumił, Thompson, Ian B., Espinoza-Arancibia, Felipe, Anderson, Richard I., Gieren, Wolfgang, Narloch, Weronika, Minniti, Javier, Pietrzyński, Grzegorz, Taormina, Mónica, Bono, Giuseppe, Hajdu, Gergely
Publikováno v:
2022, ApJL, 940, L48
We report the discovery of a surprising binary configuration of the double-mode Cepheid OGLE-LMC-CEP-1347 pulsating in the first (P_1=0.690d) and second overtone (P_2=0.556d) modes. The orbital period (P_orb=59d) of the system is five times shorter t
Externí odkaz:
http://arxiv.org/abs/2212.04518
Autor:
Wielgórski, Piotr, Pietrzyński, Grzegorz, Pilecki, Bogumił, Gieren, Wolfgang, Zgirski, Bartłomiej, Górski, Marek, Hajdu, Gergely, Narloch, Weronika, Karczmarek, Paulina, Smolec, Radosław, Kervella, Pierre, Storm, Jesper, Gallenne, Alexandre, Breuval, Louise, Lewis, Megan, Kałuszyński, Mikołaj, Graczyk, Dariusz, Pych, Wojciech, Suchomska, Ksenia, Taormina, Mónica, Garcia, Gonzalo Rojas, Kotek, Aleksandra, Chini, Rolf, Nuñez, Francisco Pozo, Noroozi, Sadegh, Figaredo, Catalina Sobrino, Haas, Martin, Hodapp, Klaus, Mikołajczyk, Przemysław, Kotysz, Krzysztof, Moździerski, Dawid, Kołaczek-Szymański, Piotr
We present time-series photometry of 21 nearby Type II Cepheids in the near-infrared J, H and Ks passbands. We use this photometry, together with the Third Gaia Early Data Release parallaxes, to determine for the first time period-luminosity relation
Externí odkaz:
http://arxiv.org/abs/2112.12122
Autor:
Salsi, Anthony, Nardetto, Nicolas, Mourard, Denis, Graczyk, Dariusz, Taormina, Monica, Creevey, Orlagh, Hocdé, Vincent, Morand, Frédéric, Perraut, Karine, Pietrzynski, Grzegorz, Schaefer, Gail H.
Publikováno v:
AA/2021/40763
Surface brightness-color relations (SBCRs) are used for estimating angular diameters and deriving stellar properties. They are critical to derive extragalactic distances of early-type and late-type eclipsing binaries or, potentially, for extracting p
Externí odkaz:
http://arxiv.org/abs/2106.01073
Autor:
Zgirski, Bartłomiej, Pietrzyński, Grzegorz, Gieren, Wolfgang, Górski, Marek, Wielgórski, Piotr, Karczmarek, Paulina, Bresolin, Fabio, Kervella, Pierre, Kudritzki, Rolf-Peter, Storm, Jesper, Graczyk, Dariusz, Hajdu, Gergely, Narloch, Weronika, Pilecki, Bogumił, Suchomska, Ksenia, Taormina, Mónica
Our work presents an independent calibration of the J-region Asymptotic Giant Branch (JAGB) method using Infrared Survey Facility (IRSF) photometric data and a custom luminosity function profile to determine JAGB mean magnitudes for nine galaxies. We
Externí odkaz:
http://arxiv.org/abs/2105.02120
Autor:
Pilecki, Bogumił, Pietrzyński, Grzegorz, Anderson, Richard I., Gieren, Wolfgang, Taormina, Mónica, Narloch, Weronika, Evans, Nancy R., Storm, Jesper
Masses of classical Cepheids of 3 to 11 M$\odot$ are predicted by theory but those measured, clump between 3.6 and 5 M$\odot$. As a result, their mass-luminosity relation is poorly constrained, impeding our understanding of basic stellar physics and
Externí odkaz:
http://arxiv.org/abs/2102.11302
Autor:
Karczmarek, Paulina, Pietrzyński, Grzegorz, Gieren, Wolfgang, Narloch, Weronika, Hajdu, Gergely, García, Gonzalo Rojas, Kałuszyński, Mikołaj, Górski, Marek, Suchomska, Ksenia, Graczyk, Dariusz, Pilecki, Bogumił, Wielgórski, Piotr, Zgirski, Bartłomiej, Taormina, Mónica, Sadh, Mradumay
Deep near-infrared $J$- and $K$-band photometry of three Local Group dwarf spheroidal galaxies: Fornax, Carina, and Sculptor, is made available for the community. Until now, these data have only been used by the Araucaria Project to determine distanc
Externí odkaz:
http://arxiv.org/abs/2101.09888
Autor:
Graczyk, Dariusz, Pietrzynski, Grzegorz, Thompson, Ian B., Gieren, Wolfgang, Zgirski, Bartlomiej, Villanova, Sandro, Gorski, Marek, Wielgorski, Piotr, Karczmarek, Paulina, Narloch, Weronika, Pilecki, Bogumil, Taormina, Monica, Smolec, Radoslaw, Suchomska, Ksenia, Gallenne, Alexandre, Nardetto, Nicolas, Storm, Jesper, Kudritzki, Rolf-Peter, Kaluszynski, Mikolaj, Pych, Wojciech
We present a new study of late-type eclipsing binary stars in the Small Magellanic Cloud (SMC) undertaken with the aim of improving the distance determination to this important galaxy. A sample of 10 new detached, double-lined eclipsing binaries inde
Externí odkaz:
http://arxiv.org/abs/2010.08754