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128 results on '"Busso, Maurizio Maria"'

3. Antarctic observations at long wavelengths with the IRAIT-ITM Telescope at Dome CGround-based and Airborne Telescopes V

Author

Stepp, Larry M., Roberto, Gilmozzi, Hall, Helen J., Durand, Gilles A., Pascal, Tremblin, Vincent, Minier, Yann, Reinert, Christophe Leroy dos Santos, Louis, Rodriguez, Xavier, Joffrin, Busso, Maurizio Maria, Tosti, Gino, Nucciarelli, Giuliano, Mauro, Dolci, Oscar, Straniero, Angelo, Valentini, Carlos, Abia, Jean Marc Christille, Eric, Doumayrou, Michel, Lortholary, Patrice, Charron, Paul, Lotrus, Christian, Walter, Samuel, Ronayette, Zalpha, Challita, Laurent, Fromont, Mathieu, Condamin, Min Kyong Kwon, and Daniele, Tavagnacco

Published
2014

9. Autonomous operations in extreme environments: the AMICA case

Author

di Rico Gianluca, Ragni, Maurizio, Dolc, Mauro, Straniero, Oscar, Valentini, Angelo, Valentini, Gaetano, di Cianno Amico, Giuliani, Croce, Bonoli, Carlotta, Bortoletto Favio, D'Alessandro Maurizio, Magrin, Demetrio, Corcione, Leonardo, Riva, Alberto, Abia, Carlos, Mancini, Alberto, Busso, Maurizio Maria, and Tosti, Gino

Published
2010

11. Mandare a Memoria

Author

Busso, Maurizio Maria

Subjects
letteratura italiana contemporanea, memeoria autobiografica, Poesia
Published
2010

14. On the Luminosity and Mass Loss of Galactic AGB Stars

Author

Guandalini, Roald, Busso, Maurizio Maria, and Cardinali, M.

Subjects
Infrared Astronomy, AGB Stars, Stellar Winds, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

As part of a reanalysis of Galactic Asymptotic Giant Branch stars (hereafter AGB stars) at infrared wavelengths, we discuss here two samples (the first of carbon-rich stars, the second of S stars) for which photometry in the near- and mid-IR and distance estimates are available. Whenever possible we searched also for mass-loss rates. The observed spectral energy distributions extended in all cases up to 20 $\mu$m and for the best-observed sources up to 45 $\mu$m. The wide wavelength coverage allows us to obtain reliable bolometric corrections, and hence bolometric magnitudes. We show that mid-IR fluxes are crucial for estimating bolometric magnitudes for stars with dusty envelopes and that the so-called luminosity problem of C stars (i.e. the suggestion that they are less luminous than predicted by models) does not appear to exist., Comment: 6 pages, 4 figures, Contribution from the Conference: "Why Galaxies Care About AGB Stars: Their Importance as Actors and Probes", held 7-11 August 2006 at University Campus, Vienna, Austria

Published
2008

18. The Dome C Gattini sky brightness cameras: results from the first year of operation

Author

Moore, A. M., Leslie, T., M. C. B., Aristidi, E., Bedding, T., Briguglio, R., Busso, Maurizio Maria, Candidi, M., Cutispoto, G., Distefano, E., Everett, J., Kenyon, S., Lawrence, J., Roux, B. L., Luong van, D., Phillips, A., Ragazzoni, R., Sabbatini, L., Salinari, P., Stello, D., J. W. V., Taylor, M., Tosti, Gino, Travouillon, T., Epchtein, N., and Rauer, H.

Published
2008

23. AMICA–the infrared eye at Dome C

Author

Riva, Alberto, Dolci, Mauro, Straniero, Oscar, Zerbi Filippo Maria, Molinari, Emilio, Conconi, Paolo, De Caprio Vincenzo, Valentini, Gaetano, Di Rico Gianluca, Ragni, Maurizio, Pelusi, Danilo, Di Varano Igor, Giuliani, Croce, Di Cianno Amico, Valentini, Angelo, Bortoletto, Favio, D'Alessandro, Maurizio, Bonoli, Carlotta, Giro, Enrico, Fantinel, Daniela, Magrin, Demetrio, Corcione, Leonardo, Busso, Maurizio Maria, Tosti, Gino, Nucciarelli, Giuliano, Roncella, Fabio, and Abia, Carlos

Subjects
Infrared Astronomy, Astrophysical Technologies, Antarctic Astronomy
Published
2007

24. Low-mass lithium-rich AGB stars in the Galactic bulge: evidence for Cool Bottom Processing?

Author

Uttentahler, S., Hron, J., Lebzelter, T., Busso, Maurizio Maria, Palmerini, Sara, Aringer, B., and Lederer, M. T.

Subjects
Physics, Astrophysics (astro-ph), chemistry.chemical_element, FOS: Physical sciences, Astronomy and Astrophysics, Context (language use), Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Spectral line, Stars, chemistry, 13. Climate action, Space and Planetary Science, Abundance (ecology), Bulge, Asymptotic giant branch, Astrophysics::Solar and Stellar Astrophysics, Lithium, Astrophysics::Earth and Planetary Astrophysics, Low Mass, Astrophysics::Galaxy Astrophysics
Abstract

Context: The stellar production of the light element lithium is still a matter of debate. Aims: We report the detection of low-mass, Li-rich Asymptotic Giant Branch (AGB) stars located in the Galactic bulge. Methods: A homogeneous and well-selected sample of low mass, oxygen-rich AGB stars in the Galactic bulge has been searched for the absorption lines of Li. Using spectral synthesis techniques, we determine from high resolution UVES/VLT spectra the Li abundance in four out of 27 sample stars, and an upper limit for the remaining stars. Results: Two stars in our sample have a solar Li abundance or above; these stars seem to be a novelty, since they do not show any s-element enhancement. Two more stars have a Li abundance slightly below solar; these stars do show s-element enhancement in their spectra. Different scenarios which lead to an increased Li surface abundance in AGB stars are discussed. Conclusions: Of the different enrichment scenarios presented, Cool Bottom Processing (CBP) is the most likely one for the Li-rich objects identified here. Self-enrichment by Hot Bottom Burning (HBB) seems very unlikely as all Li-rich stars are below the HBB mass limit. Also, the ingestion of a low mass companion into the stars' envelope is unlikely because the associated additional effects are lacking. Mass transfer from a former massive binary companion is a possible scenario, if the companion produced little s-process elements. A simple theoretical estimation for the Li abundance due to CBP is presented and compared to the observed values., Comment: 5 pages, 3 figures, accepted by A&A Letters

Published
2007
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25. An IR and Submillimeter Telescope for Dome C

Author

Olmi, L., Saraceno, P., Candidi, M., Busso, Maurizio Maria, and Marchiori, G.

Subjects
Infrared Astronomy, Antarcti Astronomy, Astrophysical Technologies
Published
2007

28. The Gattini cameras for optical sky brightness measurements in Antarctica

Author

Moore, A., Aristidi, E., Ashley, M., Briguglio, R., Busso, Maurizio Maria, Candidi, M., Everett, J., Kenyon, S., Lawrence, J., Le Roux, B., Luong van, D., Phillips, A., Ragazzoni, R., Salinari, P., Storey, J., Taylor, M., Tosti, Gino, and Travouillon, T.

Subjects
Antarctic Astronomy, Sky Monitoring, Astrophysical Technologies
Published
2007

33. Technetium and the third dredge-up in bulge AGB stars

Author

Uttenthaler, S., Hron, J., Lebzelter, T., Schultheis, M., Busso, Maurizio Maria, and Käufl, H. U.

Subjects
AGB Stars, Stellar Spectroscopy, Abundancs, Nucleosynthesis, Stellar Evolution
Published
2006

37. AMICA (Antarctic Multiband Infrared CAmera) project

Author

Dolci, M., Valentini, G., Straniero, O., di Rico, G., Ragni, M., Pelusi, D., Giuliani, C., di Cianno, A., di Varano, I., Tosti, Gino, Busso, Maurizio Maria, and Corcione, L.

Subjects
Antarctic Astronomy, Infrared astronomy, Astrophysical Technologies
Published
2005

45. A wide-field telescope for MACHO searching at Dome C

Author

Roberto, Ragazzoni, Giuseppe, Bono, Piero, Salinari, Jacopo, Farinato, Anna, Moore, Armando, Riccardi, Elise, Vernet, Carmelo, Arcidiacono, Busso, Maurizio Maria, Tosti, Gino, Emiliano, Diolaiti, Marco, Roncatelli, Giorgio, Sartori, and Alberto, Soci

Subjects
Antarctic Astronomy, Microlensing, Astrophysicla Technologies
Published
2004

48. Short-lived nuclei in the Galaxy and in the early solar system: crucial tests expected from gamma-ray line observations

Author

Busso, Maurizio Maria, Ciprini, Stefano, and Marcucci, Francesca

Subjects
gamma rays, high enrgy astrophysics, nucleosynthesis, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics::Solar and Stellar Astrophysics, Nuclear Experiment, Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

We discuss some open problems in the understanding of the Early Solar System abundances of short-lived radioactive isotopes, and the important clarification expected on this matter by precise measurements of the average galactic abundances of 26Al and 60Fe, through their gamma-ray lines., 7 pages, 1 tab. 1 fig. In ''Science with the New Generation of High Energy Gamma-ray Experiments'' Edited by S. Ciprini, A. De Angelis, P. Lubrano and O. Mansutti. August 2003, Udine: Forum Publ., p. 63 (Proc. of a Workshop held in Perugia, Italy, May 21-22, 2003)

Published
2003

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