Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Paola Michela Andreani"'
Publikováno v:
NASA Astrophysics Data System
We propose two detection techniques that take advantage of a small sky area approximation and are based on modifications of the "internal linear combination" (ILC) method, an approach widely used in Cosmology for the separation of the various compone
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56b6acdd7764bdf7df43fe4916519e05
http://arxiv.org/abs/1206.4536
http://arxiv.org/abs/1206.4536
Autor:
Vio, Robertio, Paola Michela Andreani
Publikováno v:
NASA Astrophysics Data System
AIMS: One of the most challenging and important problem of digital signal processing in Cosmology is the separation of foreground contamination from cosmic microwave background (CMB). This problem becomes even more difficult in situations, as the CMB
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1fc0e62c60b65650dced07631c3f949
http://arxiv.org/abs/0802.0400
http://arxiv.org/abs/0802.0400
Autor:
Vio, Roberto, Paola Michela Andreani
Publikováno v:
NASA Astrophysics Data System
The arguments presented by Gonzalez-Nuevo et. al (2006) in favour of the Mexican Hat Wavelet Family (MHWF) are critically discussed here. These authors allege the optimal properties of this new class of filters in the detection of point sources embed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e902ca568d6552cb34385c7783281ecd
Publikováno v:
NASA Astrophysics Data System
The Kluzniak & Abramowicz model explains high frequency, double peak, "3:2" QPOs observed in neutron star and black hole sources in terms of a non-linear parametric resonance between radial and vertical epicyclic oscillations of an almost Keplerian a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::952a9b24afc60319bb77ac5d974b789a
Autor:
Vio, R., Paola Michela Andreani
Publikováno v:
NASA Astrophysics Data System
In this note we stress the necessity of a careful check of both the theoretical arguments and the numerical experiments used by Lopez-Caniego et al. (2005) to support the superior performances of the biparametric scale adaptive filter (BSAF) with res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf3638bed848e1406b7df46198628b72
http://arxiv.org/abs/astro-ph/0509394
http://arxiv.org/abs/astro-ph/0509394
Autor:
Paola Michela Andreani
Publikováno v:
NASA Astrophysics Data System
Increasing observational evidence supports a picture for a close link among AGN phenomenum, star-formation processes and galaxy formation. Since the physical phenomena related to the onset of both AGN and star formation are very likely characterized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5b88ac424acf389d2bcd6256aebb713
http://arxiv.org/abs/astro-ph/0111138
http://arxiv.org/abs/astro-ph/0111138
Autor:
Downes, D., Neri, R., Greve, A., Guilloteau, S., Casoli, F., Hughes, D., Lutz, D., Menten, K. M., Wilner, D. J., Paola Michela Andreani, Bertoldi, F., Carilli, C. L., Dunlop, J., Genzel, R., Gueth, F., Ivison, R. J., Mann, R. G., Mellier, Y., Oliver, S., Peacock, J., Rigopoulou, D., Rowan-Robinson, M., Schilke, P., Serjeant, S., Tacconi, L. J., Wright, M.
Publikováno v:
NASA Astrophysics Data System
The IRAM interferometer has been used to detect the submm source HDF 850.1 found by Hughes et al. (1998) in the Hubble Deep Field. The flux density measured at 1.3mm is 2.2 mJy, in agreement with the flux density measured at the JCMT. The flux densit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e3ab036347b341dacd82dc9fabdcb89
Autor:
Cimatti, A., Daddi, E., Di Serego Alighieri, S., Pozzetti, L., Mannucci, F., Renzini, A., Oliva, E., Zamorani, G., Paola Michela Andreani, Röttgering, H. J. A.
Publikováno v:
Astronomy and Astrophysics, 352, L45-L50. EDP Sciences
Scopus-Elsevier
NASA Astrophysics Data System
Scopus-Elsevier
NASA Astrophysics Data System
We present near-infrared VLT-UT1+ISAAC spectroscopy of a sample of 9 extremely red galaxies (ERGs) with R-K>5 and K0.8. We discuss the general implications of our findings in relation with the problem of the formation of early type galaxies.
Com
Com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ff61355b70fb9146cb3e133de2fc4ab
http://hdl.handle.net/1887/6895
http://hdl.handle.net/1887/6895
Publikováno v:
NASA Astrophysics Data System
Recent results have questioned the description of the QSO luminosity function in terms of a pure luminosity evolution and call for a luminosity dependent luminosity evolution. Measurements of the QSO clustering amplitude and evolution allow further d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a37034232455727f6a449bb6cb1829c9
Publikováno v:
Scopus-Elsevier
CIÊNCIAVITAE
NASA Astrophysics Data System
CIÊNCIAVITAE
NASA Astrophysics Data System
The long-term variability of a sample of 149 optically selected QSOs in the field of the Selected Area 94 has been studied in the R-band. The relations between variability and luminosity and between variability and redshift have been investigated by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efc3e19b75e64b3106689af4b9a70a9b