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The IR emission of dust heated by stars provides critical information for galaxy evolution studies. Unfortunately, observations are often limited to the MIR, making templates a necessity. Previously published templates were based on small…

Astrophysics of Galaxies · Physics 2021-10-04 Médéric Boquien , Samir Salim

One of the key mysteries of star formation is the origin of the stellar initial mass function (IMF). The IMF is observed to be nearly universal in the Milky Way and its satellites, and significant variations are only inferred in extreme…

Though half of cosmic starlight is absorbed by dust and reradiated at long wavelengths (3$\mu$m-3mm), constraints on the infrared through millimeter galaxy luminosity function (the `IRLF') are poor in comparison to the rest-frame…

Seven Class 0 sources mapped with SCUBA at 850 and 450 micron are modeled using a one dimensional radiative transfer code. The modeling takes into account heating from an internal protostar, heating from the ISRF, realistic beam effects,…

Astrophysics · Physics 2009-09-28 Yancy L. Shirley , Neal J. Evans , Jonathan M. C. Rawlings

We present a new model to compute the effects of dust on the integrated spectral properties of galaxies, based on an idealized prescription of the main features of the interstellar medium (ISM). The model includes the ionization of HII…

Astrophysics · Physics 2009-10-31 S. Charlot , S. Michael Fall

FIR and submm observations have established the fundamental role of dust-obscured star formation in the assembly of stellar mass over the past 12 billion years. At z between 2 and 4, the bulk of star formation is enshrouded in dust, and…

Astrophysics of Galaxies · Physics 2024-04-16 Francesca Perrotta , Martina Torsello , Marika Giulietti , Andrea Lapi

Radiation pressure from the absorption and scattering of starlight by dust grains may be an important feedback mechanism in regulating star-forming galaxies. We compile data from the literature on star clusters, star-forming subregions,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Brett H. Andrews , Todd A. Thompson

The upcoming generation of cosmic microwave background (CMB) experiments face a major challenge in detecting the weak cosmic B-mode signature predicted as a product of primordial gravitational waves. To achieve the required sensitivity…

Cosmology and Nongalactic Astrophysics · Physics 2011-12-22 D. T. O'Dea , C. N. Clark , C. R. Contaldi , C. J. MacTavish

We adopt magnetohydrodynamics (MHD) simulations that model the formation of filamentary molecular clouds via the collision-induced magnetic reconnection (CMR) mechanism under varying physical conditions. We conduct radiative transfer using…

Astrophysics of Galaxies · Physics 2023-08-15 Duo Xu , Shuo Kong , Avichal Kaul , Hector G. Arce , Volker Ossenkopf-Okada

We present a model for the radiative output of star clusters in the process of star formation suitable for use in hydrodynamical simulations of radiative feedback. Gas in a clump, defined as a region whose density exceeds 10^4 cm^-3, is…

Astrophysics of Galaxies · Physics 2015-06-18 Corey S. Howard , Ralph E. Pudritz , William E. Harris

Context. While supernova remnants (SNRs) are observed to produce up to 1 M$_\odot$ of dust, the amount of dust destroyed by the forward shock (FS) is poorly constrained, raising the question whether they are net dust producers or…

Extragalactic foregrounds -- most notably the Cosmic Infrared Background (CIB) and the thermal Sunyaev-Zel'dovich (tSZ) effect -- exhibit complex, non-Gaussian structure and correlations that can bias analyses of small-scale cosmic…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-24 Karthik Prabhu , Srinivasan Raghunathan , Ethan B. Anderes , Lloyd E. Knox

Molecular nitrogen is one of the key species in the chemistry of interstellar clouds and protoplanetary disks and the partitioning of nitrogen between N and N2 controls the formation of more complex prebiotic nitrogen-containing species.…

Astrophysics of Galaxies · Physics 2015-06-15 Xiaohu Li , Alan N. Heays , Ruud Visser , Wim Ubachs , Brenton R. Lewis , Stephen T. Gibson , Ewine F. van Dishoeck

We study the radial distribution of the temperature of the warm dust and gas-to-dust mass ratios in a sample of 22 spiral galaxies. The heating capabilities of the diffuse interstellar radiation field (ISRF), based on Desert et al. model,…

Astrophysics · Physics 2009-10-30 Y. D. Mayya , T. N. Rengarajan

$\textit{Aims.}$ We present a case study to demonstrate the potential of multi-wavelength polarization measurements. The aim is to investigate the effects that dichroic polarization and thermal re-emission have on tracing the magnetic field…

Solar and Stellar Astrophysics · Physics 2015-06-19 S. Reissl , S. Wolf , D. Seifried

Analysis of thermal dust emission spectra for dust mineralogy and physical grain properties depends on laboratory-measured or calculated comparison spectra. Often, the agreement between these two kinds of spectra is not satisfactory because…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 H. Mutschke , M. Min , A. Tamanai

We present a solution for the ultraviolet (UV) - submillimeter (submm) interstellar radiation fields (ISRFs) of the Milky Way, derived from modelling COBE, IRAS and Planck maps of the all-sky emission in the near-, mid-, far-infrared and…

Astrophysics of Galaxies · Physics 2017-07-26 C. C. Popescu , R. Yang , R. J. Tuffs , G. Natale , M. Rushton , F. Aharonian

Gas cooling processes in the interstellar medium (ISM) are key to understanding how star-formation processes occur in galaxies. Far-infrared (FIR) fine-structure emission lines can be used as a tool to understand the gas conditions and…

Astrophysics of Galaxies · Physics 2023-12-06 Andrés Felipe Ramos Padilla , Lingyu Wang , F. F. S. van der Tak , Scott Trager

Recently Menard et al. detected a subtle but systematic change in the mean color of quasars as a function of their projected separation from foreground galaxies, extending to comoving separations of ~10Mpc/h, which they interpret as a…

Cosmology and Nongalactic Astrophysics · Physics 2011-01-06 Ying Zu , David H. Weinberg , Romeel Davé , Mark Fardal , Neal Katz , Dusan Keres , Benjamin D. Oppenheimer

We present STARFORGE (STAR FORmation in Gaseous Environments): a new numerical framework for 3D radiation MHD simulations of star formation that simultaneously follow the formation, accretion, evolution, and dynamics of individual stars in…

Instrumentation and Methods for Astrophysics · Physics 2024-02-29 Michael Y. Grudić , Dávid Guszejnov , Philip F. Hopkins , Stella S. R. Offner , Claude-André Faucher-Giguère
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