Results 41 to 50 of about 62,635 (144)

Morphology of Star-forming Clumps in Ram-pressure Stripped Galaxies as Seen by HST

The Astrophysical Journal, 2023
We characterize the morphological properties of a statistically relevant sample of H α and UV young star-forming clumps and optical complexes, observed with the Hubble Space Telescope in six galaxies of the GASP sample undergoing ram pressure stripping ...
Eric Giunchi, Bianca M. Poggianti, Marco Gullieuszik, Alessia Moretti, Ariel Werle, Anita Zanella, Benedetta Vulcani, Stephanie Tonnesen, Daniela Calzetti, Callum Bellhouse, Claudia Scarlata, Cecilia Bacchini   +11 more
doaj   +1 more source

Polarimetric Properties of Blazars Caught by the WEBT

Galaxies, 2021
Active galactic nuclei come in many varieties. A minority of them are radio-loud, and exhibit two opposite prominent plasma jets extending from the proximity of the supermassive black hole up to megaparsec distances.
Claudia M. Raiteri, Massimo Villata
doaj   +1 more source

The evolution of the galaxy luminosity function in the rest frame blue band up to z=3.5

, 2003
We present an estimate of the cosmological evolution of the field galaxy luminosity function (LF) in the rest frame 4400 Angstrom B -band up to redshift z=3.5. To this purpose, we use a composite sample of 1541 I--selected galaxies selected down to I_(AB)
A., A., CIMATTI, CRISTIANI, D\'ODORICO, DADDI, DONNARUMMA, E., E., E., F., FONTANA, G., GIALLONGO, I., L., M., M., MENCI, MIGNOLI, N., NONINO, P., POLI, POZZETTI, RENZINI, S., S., S., SALIMBENI, SARACCO, VANZELLA, VANZELLA E., ZAMORANI   +33 more
core   +1 more source

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

Astronomische Nachrichten, Volume 347, Issue 3, March 2026.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik, P. Köchling, S. Kotov, J. Kozok, Y. Galata, L. Magrini, A. Moiseev, M. Nischang, C. Reese, P. Remmel, P. Riepe, T. Zilch, K. Werner   +12 more
wiley   +1 more source

Un segno per il primo meridiano d’Italia a Roma

GEOmedia, 2008
A sign for Italy's Prime Meridian Italy's Prime Meridian, defined in 1871, is situated in a brick tower at the top of Monte Mario - Rome's highest hill. The Italian Government chose the site to be the point of passage for the Prime Meridian on September
Tullio Aebischer, Paolo Battinelli
doaj   +2 more sources

The GAPS Programme with HARPS-N at TNG XV. A substellar companion around a K giant star identified with quasi-simultaneous HARPS-N and GIANO measurements

, 2017
Context. Identification of planetary companions of giant stars is made difficult because of the astrophysical noise, that may produce radial velocity (RV) variations similar to those induced by a companion.
Affer, L., Benatti, S., Biazzo, K., Bonomo, A. S., Borsa, F., Carleo, I., Claudi, R., Cosentino, R., Covino, E., D'Orazi, V., Damasso, M., Desidera, S., Esposito, M., Giacobbe, P., Gratton, R., Harutyunyan, A., Lanza, A. F., Maggio, A., Malavolta, L., Maldonado, J., Martinez-Fiorenzano, A., Masiero, S., Massi, F., Micela, G., Molinari, E., Nascimbeni, V., Oliva, E., Pagano, I., Pedani, M., Piotto, G., Poretti, E., Rainer, M., Sanna, N., Scandariato, G., Smareglia, R., Sozzetti, A., Álvarez, E. González -   +36 more
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The GAPS Programme with HARPS-N at TNG. X. Differential abundances in the XO-2 planet hosting binary [PDF]

, 2015
Binary stars hosting exoplanets are a unique laboratory where chemical tagging can be performed to measure with high accuracy the elemental abundances of both stellar components, with the aim to investigate the formation of planets and their subsequent ...
Affer, L., Biazzo, K., Boccato, C., Bonomo, A. S., Borsa, F., Claudi, R., Cosentino, R., Covino, E., Damasso, M., Desidera, S., Gandolfi, D., Gratton, R., Knapic, C., Lanza, A. F., Lucatello, S., Maldonado, J., Marzari, F., Micela, G., Molaro, P., Pagano, I., Pedani, M., Pillitteri, I., Piotto, G., Poretti, E., Rainer, M., Sanchez, R. Zanmar, Santos, N. C., Scandariato, G., Sozzetti, A.   +28 more
core   +2 more sources

Seismo‐Acoustic Evidence for Meteoric Water Modulation of Hydrothermal Fluid Discharge

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Deciphering the signal of external processes on active hydrothermal dynamics represents a critical challenge in understanding volcanic unrest. At the Pisciarelli hydrothermal site, located within the densely populated Campi Flegrei caldera (Italy), we investigate the role of meteoric water influx in modulating shallow hydrothermal fluid ...
Rebecca Sveva Morelli, Dario Delle Donne, Stefano Caliro, Lucia Nardone, Massimo Orazi, Alessandro Aiuppa, Ciro Buonocunto, Aldo Benincasa, Antonella Bobbio, Antonio Caputo, Prospero De Martino, Sergio Gammaldi, Danilo Galluzzo, Flora Giudicepietro, Francesco Liguoro, Vincenzo Morra, Lucia Pappalardo, Rosario Peluso, Patrizia Ricciolino, Francesco Rufino, Giovanni Scarpato, Maria Grazia Soldovieri, Anna Tramelli, Mauro Antonio Di Vito   +23 more
wiley   +1 more source

Spectral index-flux relation for investigating the origins of steep decay in γ-ray bursts

Nature Communications, 2021
Gamma ray bursts (GRB) are transient events releasing large amount of energy. Here, the authors show a relation between the spectral index and the flux, which allows further investigation of the origin of steep decay in GRBs.
Samuele Ronchini, Gor Oganesyan, Marica Branchesi, Stefano Ascenzi, Maria Grazia Bernardini, Francesco Brighenti, Simone Dall’Osso, Paolo D’Avanzo, Giancarlo Ghirlanda, Gabriele Ghisellini, Maria Edvige Ravasio, Om Sharan Salafia   +11 more
doaj   +1 more source

A very faint core-collapse supernova in M85

, 2007
An anomalous transient in the early Hubble-type (S0) galaxy Messier 85 (M85) in the Virgo cluster was discovered by Kulkarni et al. (2007) on 7 January 2006 that had very low luminosity (peak absolute R-band magnitude MR of about -12) that was constant ...
A Pastorello, A Pastorello, A Rau, A. Pastorello, C Leitherer, D Fisher, E. Cappellaro, F. Patat, FS Kitaura, JL Tonry, JR Maund, L Zampieri, L. Zampieri, M Della Valle, M Turatto, M. Della Valle, M. Turatto, NN Chugai, P. A. Mazzali, S. Benetti, S. J. Smartt, S. Spiro, S. Valenti, SR Kulkarni, W Li   +24 more
core   +1 more source