Zobrazeno 1 - 10
of 96
pro vyhledávání: '"P. Selvelli"'
Autor:
Izzo, L., Pasquini, L., Aydi, E., Della Valle, M., Gilmozzi, R., Harvey, E. A., Molaro, P., Otulakowska-Hypka, M., Selvelli, P., Thöne, C. C., Williams, R.
Publikováno v:
A&A 686, A72 (2024)
T Pyx is one of the most enigmatic recurrent novae, and it has been proposed as a potential Galactic type-Ia supernova progenitor. Using spatially-resolved data obtained with MUSE, we characterized the geometrical distribution of the material expelle
Externí odkaz:
http://arxiv.org/abs/2312.04277
Autor:
Molaro, P., Izzo, L., Selvelli, P., Bonifacio, P., Aydi, E., Cescutti, G., Guido, E., Harvey, E. J., Hernanz, M., Della Valle, M.
Publikováno v:
MNRAS 2022
The recurrent nova RS Oph underwent a new outburst on August 8, 2021, reaching a visible brightness of V = 4.8 mag. Observations of the 2021 outburst made with the high resolution UVES spectrograph at the Kueyen-UT2 telescope of ESO-VLT in Paranal en
Externí odkaz:
http://arxiv.org/abs/2209.11008
Autor:
Izzo, Luca, Molaro, Paolo, Cescutti, Gabriele, Aydi, Elias, Selvelli, Pierluigi, Harvey, Eamonn, Agnello, Adriano, Bonifacio, Piercarlo, Della Valle, Massimo, Guido, Ernesto, Hernanz, Margarita
We analyse high resolution spectra of two classical novae that exploded in the Small Magellanic Cloud. $^7$Be II resonance transitions are detected in both ASASSN-19qv and ASASSN-20ni novae. This is the first detection outside the Galaxy and confirms
Externí odkaz:
http://arxiv.org/abs/2112.11859
Autor:
Cupani, Guido, Calderone, Giorgio, Selvelli, Pierluigi, Cristiani, Stefano, Boutsia, Konstantina, Grazian, Andrea, Fontanot, Fabio, Guarneri, Francesco, D'Odorico, Valentina, Giallongo, Emanuele, Menci, Nicola
We report on the spectral confirmation of 18 QSO candidates from the "QUasars as BRIght beacons for Cosmology in the Southern hemisphere'' survey (QUBRICS), previously observed in the optical band, for which we acquired new spectroscopic data in the
Externí odkaz:
http://arxiv.org/abs/2112.02594
Autor:
Molaro, P., Izzo, L., D'Odorico, V., Aydi, E., Bonifacio, P., Cescutti, G., Harvey, E. J., Hernanz, M., Selvelli, P., della Valle, M.
We report the search for 7Be isotope in the outbursts of the classical nova V6595 Sgr by means of high resolution UVES observations taken at the ESO VLT in April 2021, about two weeks after discovery and under difficult circumstances due to the pande
Externí odkaz:
http://arxiv.org/abs/2111.01469
Autor:
Molaro, Paolo, Izzo, Luca, Bonifacio, Piercarlo, Hernanz, Margarita, Selvelli, Pierluigi, Della Valle, Massimo
Following the recent detection of 7Be in the outburst spectra of Classical Novae we report the search for this isotope in the outbursts of four recent bright novae by means of high resolution UVES observations. The 7BeII 313.0583, 313.1228 nm doublet
Externí odkaz:
http://arxiv.org/abs/1912.13281
Autor:
Selvelli, Pierluigi, Gilmozzi, Roberto
Publikováno v:
Astronomy and Astrophysics 622,A186 (2019)
{We combine the results of our earlier study of the UV characteristics of 18 classical novae (CNe) with data from the literature and with the recent precise distance determinations from the Gaia satellite to investigate the statistical properties of
Externí odkaz:
http://arxiv.org/abs/1903.05868
High and low resolution $IUE$ spectra of V838 Her in the early outburst stages exhibit a strong absorption feature shortward of $\lambda$3130. We discuss the nature of this spectral feature and provide convincing evidence that it corresponds to the b
Externí odkaz:
http://arxiv.org/abs/1809.04180
Akademický článek
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Autor:
Selvelli, Pierluigi, Molaro, Paolo
Ancient instruments of high interest for research on the origin and diffusion of early scientific devices in the late XVI - early XVII centuries are reproduced in three paintings by Jan Brueghel the Elder. We investigated the nature and the origin of
Externí odkaz:
http://arxiv.org/abs/1512.01347