Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Tsalmantza, P."'
Autor:
Lusso, Elisabeta, Decarli, Roberto, Dotti, Massimo, Montuori, Carmen, Hogg, David W., Tsalmantza, Paraskevi, Fumagalli, Michele, Prochaska, Jason X.
Recoiling supermassive black holes (SMBHs) are considered one plausible physical mechanism to explain high velocity shifts between narrow and broad emission lines sometimes observed in quasar spectra. If the sphere of influence of the recoiling SMBH
Externí odkaz:
http://arxiv.org/abs/1403.4931
Autor:
Decarli, Roberto, Dotti, Massimo, Fumagalli, Michele, Tsalmantza, Paraskevi, Montuori, Carmen, Lusso, Elisabeta, Hogg, David W., Prochaska, Jason X.
Theoretically, bound binaries of massive black holes are expected as the natural outcome of mergers of massive galaxies. From the observational side, however, massive black hole binaries remain elusive. Velocity shifts between narrow and broad emissi
Externí odkaz:
http://arxiv.org/abs/1305.4941
Autor:
Tsalmantza, P., Hogg, David W.
We present a data-driven method - heteroscedastic matrix factorization, a kind of probabilistic factor analysis - for modeling or performing dimensionality reduction on observed spectra or other high-dimensional data with known but non-uniform observ
Externí odkaz:
http://arxiv.org/abs/1201.3370
Autor:
Tsalmantza, P., Karampelas, A., Kontizas, M., Bailer-Jones, C. A. L., Rocca-Volmerange, B., Livanou, E., Bellas-Velidis, I., Kontizas, E., Vallenari, A.
Aims:This paper is the third in a series implementing a classification system for Gaia observations of unresolved galaxies. The system makes use of template galaxy spectra in order to determine spectral classes and estimate intrinsic astrophysical pa
Externí odkaz:
http://arxiv.org/abs/1110.6806
We present the results of a systematic search for massive black hole binaries in the Sloan Digital Sky Survey spectroscopic database. We focus on bound binaries, under the assumption that one of the black holes is active. In this framework, the broad
Externí odkaz:
http://arxiv.org/abs/1106.1180
Autor:
P. Tsalmantza, Jason X. Prochaska, David W. Hogg, Massimo Dotti, Roberto Decarli, Carmen Montuori, Elisabeta Lusso, Michele Fumagalli
Publikováno v:
Monthly notices of the Royal Astronomical Society, 2013, Vol.433(2), pp.1492-1504 [Peer Reviewed Journal]
Theoretically, bound binaries of massive black holes are expected as the natural outcome of mergers of massive galaxies. From the observational side, however, massive black hole binaries remain elusive. Velocity shifts between narrow and broad emissi
Autor:
David W. Hogg, Jason X. Prochaska, Massimo Dotti, Michele Fumagalli, P. Tsalmantza, Roberto Decarli, Elisabeta Lusso, Carmen Montuori
Publikováno v:
Monthly notices of the Royal Astronomical Society, 2014, Vol.441(1), pp.316-332 [Peer Reviewed Journal]
Recoiling supermassive black holes (SMBHs) are considered one plausible physical mechanism to explain high velocity shifts between narrow and broad emission lines sometimes observed in quasar spectra. If the sphere of influence of the recoiling SMBH
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e389c42809a4a99b8d00fc1ef9a754f6