Zobrazeno 1 - 10
of 1 153
pro vyhledávání: '"Somma, G"'
Autor:
Musella, I., Leccia, S., Molinaro, R., Marconi, M., Cusano, F., Di Criscienzo, M., Fiorentino, G., Braga, V., Ripepi, V., De Somma, G., Gatto, M., Luongo, E., Sicignano, T.
An analysis of the Ultra Long Period Cepheids (ULPs) properties could significantly contribute to understanding the Hubble constant tension, e.g. the current discrepancy between determinations based on local distance indicators and those relying on c
Externí odkaz:
http://arxiv.org/abs/2410.12017
Autor:
Trentin, E., Catanzaro, G., Ripepi, V., Alonso-Santiago, J., Molinaro, R., Storm, J., De Somma, G., Marconi, M., Bhardwaj, A., Gatto, M., Musella, I., Testa, V.
Publikováno v:
A&A 690, A246 (2024)
Classical Cepheids (DCEPs) are crucial for calibrating the extragalactic distance ladder, ultimately enabling the determination of the Hubble constant through the PL and PW relations they exhibit. Hence it's vital to understand how the PL and PW rela
Externí odkaz:
http://arxiv.org/abs/2404.17299
Autor:
Bhardwaj, A., Ripepi, V., Testa, V., Molinaro, R., Marconi, M., De Somma, G., Trentin, E., Musella, I., Storm, J., Sicignano, T., Catanzaro, G.
We present homogeneous multiband (grizJHKs) time-series observations of 78 Cepheids including 49 fundamental mode variables and 29 first-overtone mode variables. These observations were collected simultaneously using the ROS2 and REMIR instruments at
Externí odkaz:
http://arxiv.org/abs/2401.03584
Autor:
Ripepi, V., Catanzaro, G., Trentin, E., Straniero, O., Mucciarelli, A., Marconi, M., Bhardwaj, A., Fiorentino, G., Monelli, M., Storm, J., De Somma, G., Leccia, S., Molinaro, R., Musella, I., Sicignano, T.
Anomalous Cepheids (ACEPs) are intermediate mass metal-poor pulsators mostly discovered in dwarf galaxies of the Local Group. However, recent Galactic surveys, including the Gaia DR3, found a few hundreds of ACEPs in the Milky Way. Their origin is no
Externí odkaz:
http://arxiv.org/abs/2310.20503
Autor:
Trentin, E., Ripepi, V., Molinaro, R., Catanzaro, G., Storm, J., De Somma, G., Marconi, M., Bhardwaj, A., Gatto, M., Testa, V., Musella, I., Clementini, G., Leccia, S.
Classical Cepheids (DCEPs) play a fundamental role in the calibration of the extra-galactic distance ladder which eventually leads to the determination of the Hubble constant($H_0$) thanks to the period-luminosity ($PL$) and period-Wesenheit ($PW$) r
Externí odkaz:
http://arxiv.org/abs/2310.03603
Autor:
Molinaro, R., Ripepi, V., Marconi, M., Romaniello, M., Catanzaro, G., Cusano, F., De Somma, G., Musella, I., Storm, J., Trentin, E.
Classical Cepheids (DCEPs) are the most important standard candles in the extra-galactic distance scale thanks to the Period-Luminosity ($\rm PL$), Period-Luminosity-Color ($\rm PLC$) and Period-Wesenheit ($\rm PW$) relations that hold for these obje
Externí odkaz:
http://arxiv.org/abs/2302.03455
Autor:
Trentin, E., Ripepi, V., Catanzaro, G., Storm, J., Marconi, M., De Somma, G., Testa, V., Musella, I.
Classical Cepheids (DCEPs) are the first fundamental step in the calibration of the cosmological distance ladder. Furthermore, they represent powerful tracers in the context of Galactic studies. We have collected high-resolution spectroscopy with UVE
Externí odkaz:
http://arxiv.org/abs/2209.03792
Publikováno v:
Appl. Opt. 61, 9256-9261 (2022)
This work demonstrates that a middle size ring laser gyroscope (RLG) can be a very sensitive and robust instrument for rotational seismology, even if it operates in a quite noisy environment. The RLG has a square cavity, $1.60\times 1.60$ m$^2$, and
Externí odkaz:
http://arxiv.org/abs/2207.04942
Autor:
Ripepi, V., Chemin, L., Molinaro, R., Cioni, M. R. L., Bekki, K., Clementini, G., de Grijs, R., De Somma, G., Youssoufi, D. El, Girardi, L., Groenewegen, M. A. T., Ivanov, V., Marconi, M., McMillan, P. J., van Loon, J. Th.
We employed the {\it VISTA near-infrared $YJK_\mathrm{s}$ survey of the Magellanic System} (VMC), to analyse the $Y,\,J,\,K_\mathrm{s}$ light curves of $\delta$ Cepheid stars (DCEPs) in the Large Magellanic Cloud (LMC). Our sample consists of 4408 ob
Externí odkaz:
http://arxiv.org/abs/2203.01780
Autor:
Ripepi, V., Catanzaro, G., Clementini, G., De Somma, G., Drimmel, R., Leccia, S., Marconi, M., Molinaro, R., Musella, I., Poggio, E.
Classical Cepheids (DCEPs) represent a fundamental tool to calibrate the extragalactic distance scale. However, they are also powerful stellar population tracers in the context of Galactic studies. The forthcoming Data Release 3 (DR3) of the Gaia mis
Externí odkaz:
http://arxiv.org/abs/2201.01126