Search Results - "N. Nardetto"

A distance to the Large Magellanic Cloud that is precise to one per cent by Pietrzyński, G., Graczyk, D., Gallenne, A., Gieren, W., Thompson, I. B., Pilecki, B., Karczmarek, P., Górski, M., Suchomska, K., Taormina, M., Zgirski, B., Wielgórski, P., Kołaczkowski, 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 determine the Hubble constant empirically with an accuracy of one per cent or better 1 . At present, the…”
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An eclipsing-binary distance to the Large Magellanic Cloud accurate to two per cent by Pietrzyński, G., Graczyk, D., Gieren, W., Thompson, I. B., Pilecki, B., Udalski, A., Soszyński, I., Kozłowski, S., Konorski, P., Suchomska, K., Bono, G., Moroni, P. G. Prada, Villanova, S., Nardetto, N., Bresolin, F., Kudritzki, R. P., Storm, J., Gallenne, A., Smolec, R., Minniti, D., Kubiak, M., Szymański, M. K., Poleski, R., Wyrzykowski, Ł., Ulaczyk, K., Pietrukowicz, P., Górski, M., Karczmarek, P.

“…Observations of eight long-period, late-type eclipsing-binary systems composed of cool, giant stars are used to determine a distance to the Large Magellanic…”
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The expanding fireball of Nova Delphini 2013 by Schaefer, G. H., Brummelaar, T. ten, Gies, D. R., Farrington, C. D., Kloppenborg, B., Chesneau, O., Monnier, J. D., Ridgway, S. T., Scott, N., Tallon-Bosc, I., McAlister, H. A., Boyajian, T., Maestro, V., Mourard, D., Meilland, A., Nardetto, N., Stee, P., Sturmann, J., Vargas, N., Baron, F., Ireland, M., Baines, E. K., Che, X., Jones, J., Richardson, N. D., Roettenbacher, R. M., Sturmann, L., Turner, N. H., Tuthill, P., van Belle, G., von Braun, K., Zavala, R. T., Banerjee, D. P. K., Ashok, N. M., Joshi, V., Becker, J., Muirhead, P. S.

“…High spatial resolution is needed to study the early development of a nova; here measurements of the angular size and radial velocity of Nova Delphini 2013…”
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Effective temperatures of classical Cepheids from line-depth ratios in the H-band by Kovtyukh, V, Lemasle, B, Nardetto, N, Bono, G, da Silva, R, Matsunaga, N, Yushchenko, A, Fukue, K, Grebel, E K

“…ABSTRACT The technique of line depth ratios (LDRs) is one of the methods to determine the effective temperature of a star. They are crucial in the…”
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Physical parameters and the projection factor of the classical Cepheid in the binary system OGLE-LMC-CEP-0227 by Pilecki, B., Graczyk, D., Pietrzy ski, G., Gieren, W., Thompson, I. B., Freedman, W. L., Scowcroft, V., Madore, B. F., Udalski, A., Soszy ski, I., Konorski, P., Smolec, R., Nardetto, N., Bono, G., Prada Moroni, P. G., Storm, J., Gallenne, A.

“…A novel method of analysis of double-lined eclipsing binaries containing a radially pulsating star is presented. The combined pulsating-eclipsing light curve…”
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RR-Lyrae-type pulsations from a 0.26-solar-mass star in a binary system by Pietrzyński, G., Thompson, I. B., Gieren, W., Graczyk, D., Stępień, K., Bono, G., Moroni, P. G. Prada, Pilecki, B., Udalski, A., Soszyński, I., Preston, G. W., Nardetto, N., McWilliam, A., Roederer, I. U., Górski, M., Konorski, P., Storm, J.

“…The pulsating star OGLE-BLG-RRLYR-02792 is known to be a member of an eclipsing binary system, and its mass is now determined to be only 0.26 times that of the…”
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Toward Early-type Eclipsing Binaries as Extragalactic Milestones. I. Physical Parameters of OGLE-LMC-ECL-22270 and OGLE-LMC-ECL-06782 by Taormina, Mónica, Pietrzy ski, 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 a series, we describe our project to calibrate the distance determination method based on early-type binary systems. The final objective…”
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Pulsation models for the 0.26 M star mimicking RR Lyrae pulsator. Model survey for the new class of variable stars by Smolec, R., Pietrzy ski, G., Graczyk, D., Pilecki, B., Gieren, W., Thompson, I., St pie, K., Karczmarek, P., Konorski, P., Górski, M., Suchomska, K., Bono, G., Prada, P. G. Moroni, Nardetto, N.

“…We present non-linear hydrodynamic pulsation models for OGLE-BLG-RRLYR-02792 - a 0.26 M pulsator, component of the eclipsing binary system, analysed recently…”
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HYDRODYNAMIC MODEL FOR A β Cephei VARIABLE BW Vulpeculae by A. Fokin, Ph. Mathias, E. Chapellier, D. Gillet, N. Nardetto

“…A hydrodynamical model for the high-amplitude β Cephei star BW Vulpeculae is generated, and the spectral line profiles are calculated for different pulsational…”
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THE ARAUCARIA PROJECT: AN ACCURATE DISTANCE TO THE LATE-TYPE DOUBLE-LINED ECLIPSING BINARY OGLE SMC113.3 4007 IN THE SMALL MAGELLANIC CLOUD by GRACZYK, Dariusz, PIETRZYNSKI, Grzegorz, KONORSKI, Piotr, MENNICKENT, Ronald, MINNITI, Dante, STORM, Jesper, NARDETTO, Nicolas, KARCZMAREK, Paulina, THOMPSON, Ian B, GIEREN, Wolfgang, PILECKI, Bogumił, UDALSKI, Andrzej, SOSZYNSKI, Igor, KOLACZKOWSKI, Zbigniew, KUDRITZKI, Rolf-Peter, BRESOLIN, Fabio

“…We have analyzed the long-period, double-lined eclipsing binary system OGLE SMC113.3 4007 (SC10 137844) in the Small Magellanic Cloud. The binary lies in the…”
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Pulsating stars and eclipsing binaries as distances indicators in the universe by Nardetto, N

“…Determining the expansion of the universe, i.e. the Hubble constant (H0) to better than 2% is required in order to understand the nature of dark energy…”
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Theoretical analysis of surface brightness-colour relations for late-type stars using MARCS model atmospheres by Salsi, A, Nardetto, N, Plez, B, Mourard, D

“…A&A 662, A120 (2022) Surface brightness-colour relations (SBCRs) are largely used for general studies in stellar astrophysics and for determining extragalactic…”
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The Angular Size of the Cepheid l Carinae: A Comparison of the Interferometric and Surface Brightness Techniques by Kervella, Pierre, Fouqué, Pascal, Storm, Jesper, Gieren, Wolfgang P., Bersier, David, Mourard, Denis, Nardetto, Nicolas, Du Coudé Foresto, Vincent

“…Recent interferometric observations of the brightest and angularly largest classical Cepheid, l Carinae, with ESO's Very Large Telescope Interferometer have…”
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Effective temperatures of classical Cepheids from line-depth ratios in the H-band by Kovtyukh, V, Lemasle, B, Nardetto, N, Bono, G, da Silva, R, Matsunaga, N, Yushchenko, A, Fukue, K, Grebel, E. K

“…The technique of line depth ratios (LDR) is one of the methods to determine the effective temperature of a star. They are crucial in the spectroscopic studies…”
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The orbital parameters of the del Cep inner binary system determined using 2019 HARPS-N spectroscopic data by Nardetto, N, Hocdé, V, Kervella, P, Gallenne, A, Gieren, W, Graczyk, D, Merand, A, Rainer, M, Storm, J, Pietrzynski, G, Pilecki, B, Poretti, E, Bailleul, M, Afanasiev, G. Bras A

“…An inner companion has recently been discovered orbiting the prototype of classical Cepheids, delta Cep, whose orbital parameters are still not fully…”
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Extended envelopes around Galactic Cepheids. V. Multi-wavelength and time-dependent analysis of IR excess by Gallenne, A, Mérand, A, Kervella, P, Pietrzyński, G, Gieren, W, Hocdé, V, Breuval, L, Nardetto, N, Lagadec, E

“…A&A 651, A113 (2021) We aim to investigate the IR excess of 45 MW Cepheids combining different observables to constrain the presence of CSE. We used the SPIPS…”
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HARPS-N high spectral resolution observations of Cepheids II. The impact of the surface-brightness color relation on the Baade-Wesselink projection factor of eta Aql by Nardetto, N, Gieren, W, Storm, J, Hocde, V, Pietrzynski, G, Kervella, P, Merand, A, Gallenne, A, Graczyk, D, Pilecki, B, Poretti, E, Rainer, M, Zgirski, B, Wielgorski, P, Hajdu, G, Gorski, M, Karczmarek, P, Narloch, W, Taormina, M

“…A&A 671, A14 (2023) The Baade-Wesselink (BW) method of distance determination of Cepheids is used to calibrate the distance scale. Various versions of this…”
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An impressionist view of V Hydrae. When MATISSE paints Asymmetric Giant Blobs by Planquart, L, Paladini, C, Jorissen, A, Escorza, A, Pantin, E, Drevon, J, Aringer, B, Baron, F, Chiavassa, A, Cruzalèbes, P, Danchi, W, De Beck, E, Groenewegen, M. A. T, Höfner, S, Hron, J, Khouri, T, Lopez, B, Lykou, F, Montarges, M, Nardetto, N, Ohnaka, K, Olofsson, H, Rau, G, Rosales-Guzmán, A, Sanchez-Bermudez, J, Scicluna, P, Siess, L, Thévenin, F, Van Eck, S, Vlemmings, W. H. T, Weigelt, G, Wittkowski, M

“…A&A 687, A306 (2024) Our purpose is to study the effect of binary companions located within the first 10 stellar radii from the primary AGB star. In this work,…”
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The Araucaria Project: Improving the cosmic distance scale by 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

“…Published on behalf of the Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences. Editors: P. Karczmarek, M. Lewis, G. Pietrzy\'nski…”
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Surface brightness-colour relations of dwarf stars from detached eclipsing binaries -- I. Calibrating sample by Graczyk, D, Pietrzyński, G, Galan, C, Southworth, J, Gieren, W, Kałuszyński, M, Zgirski, B, Gallenne, A, Górski, M, Hajdu, G, Karczmarek, P, Kervella, P, Maxted, P. F. L, Nardetto, N, Narloch, W, Pilecki, B, Pych, W, Garcia, G. Rojas, Storm, J, Suchomska, K, Taormina, M, Wielgórski, P

“…A&A 666, A128 (2022) Surface brightness -- colour relations (SBCRs) are very useful tools for predicting the angular diameters of stars. They offer the…”
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