Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Joerg Fischera"'
Autor:
Jordan J. Thirlwall, Joerg Fischera, Richard J. Tuffs, Stefano Pasetto, Cristina C. Popescu, M. T. Rushton, Giovanni Natale, Victor P. Debattista, Adam J. Clarke
We present an extensively updated version of the purely ray-tracing 3D dust radiation transfer code DART-Ray. The new version includes five major upgrades : 1) a series of optimizations for the ray-angular density and the scattered radiation source f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1abae24af8e141a82dac80a44e0c35f
Publikováno v:
The Astrophysical Journal. 599:L21-L24
The empirical reddening function for starburst galaxies generated by Calzetti and her co-workers has proven very successful, and is now used widely in the observational literature. Despite its success, however, the physical basis for this extinction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fd0eafc4b154bd3d613fa80226438d2
https://doi.org/10.1086/381190
https://doi.org/10.1086/381190
Publikováno v:
Astronomy & Astrophysics. 386:517-530
We present measurements of the mid-infrared (MIR) emission from SN 1987A, made using the Infrared Space Observatory (ISO) 11 years after outburst. They are the only late epoch detections of this source in the thermal IR regime. The position of the so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6127a794baa1071a71ec69f69c1c0d8
https://doi.org/10.1051/0004-6361:20020247
https://doi.org/10.1051/0004-6361:20020247
Autor:
Joerg Fischera
The probability distribution function (PDF) of the mass surface density is an essential characteristic of the structure of molecular clouds or the interstellar medium in general. Observations of the PDF of molecular clouds indicate a composition of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6c5303dbc017a0acbed3a4a4869873b
Autor:
Joerg Fischera, Peter G. Martin
We analyze the physical parameters of interstellar filaments that we describe by an idealized model of isothermal self-gravitating infinite cylinder in pressure equilibrium with the ambient medium. Their gravitational state is characterized by the ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37730c2472173eb1bae6b87d6d2d1746
http://arxiv.org/abs/1204.3608
http://arxiv.org/abs/1204.3608
Autor:
Joerg Fischera, Peter G. Martin
We present a detailed study of the surface brightness profiles of dense filaments in IC 5146 using recent Herschel observations done with SPIRE. We describe the profile through an equilibrium solution of a self-gravitating isothermal cylinder pressur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32da3c10b65b2b51ec3b1da92e1d64ac
Autor:
Joerg Fischera, Cristina Popescu, Michael A. Dopita, Barry F. Madore, Richard J. Tuffs, Nikolaos D. Kylafis
We present a self-consistent model of the spectral energy distributions (SEDs) of spiral galaxies from the ultraviolet (UV) to the mid-infrared (MIR)/far-infrared (FIR)/submillimeter (submm) based on a full radiative transfer calculation of the propa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc88060253350f4c0e6c3fd9f5d36721
http://arxiv.org/abs/1011.2942
http://arxiv.org/abs/1011.2942
Autor:
Joerg Fischera, Brian P. Schmidt
Publikováno v:
Galaxies and their Masks ISBN: 9781441973160
Supernova of type Ia, exploding white dwarfs near the Chandrasekhar limit of 1.4 solar masses, have gained tremendous importance due to their utility as cosmological distance indicators. Observations of these events have revealed the unexpected and a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c561b3ad83e166ba9a183959d2998326
https://doi.org/10.1007/978-1-4419-7317-7_39
https://doi.org/10.1007/978-1-4419-7317-7_39
Autor:
Joerg Fischera, Michael A. Dopita
We derive the spectral energy distribution (SED) of dusty, isothermal, self gravitating, stable and spherical clouds externally heated by the ambient interstellar radiation field. For a given radiation field and dust properties, the radiative transfe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::958322b93ac58adb45db971eb7c5392e
Autor:
Giovanni Natale, Juergen Steinacker, Simone Bianchi, Karl D. Gordon, Michael P. Fitzgerald, Joerg Fischera, Maarten Baes, Peter Camps, T. Lunttila, Karl Misselt, Christophe Pinte, Mika Juvela
Publikováno v:
Camps, P; Misselt, K; Bianchi, S; Lunttila, T; Pinte, C; Natale, G; et al.(2015). Benchmarking the calculation of stochastic heating and emissivity of dust grains in the context of radiative transfer simulations. Astronomy and Astrophysics, 580. doi: 10.1051/0004-6361/201525998. UCLA: Retrieved from: http://www.escholarship.org/uc/item/2zs5f4fg
ASTRONOMY & ASTROPHYSICS
ASTRONOMY & ASTROPHYSICS
We define an appropriate problem for benchmarking dust emissivity calculations in the context of radiative transfer (RT) simulations, specifically including the emission from stochastically heated dust grains. Our aim is to provide a self-contained g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2725101499ec21a862000b5d4e8d0e6
https://doi.org/10.1051/0004-6361/201525998
https://doi.org/10.1051/0004-6361/201525998