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相关论文: Observational limits on the early-time dust mass i…

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Classical novae commonly show evidence of rapid dust formation within months of the outburst. However, it is unclear how molecules and grains are able to condense within the ejecta, given the potentially harsh environment created by…

太阳与恒星天体物理 · 物理学 2019-01-29 Andrea M. Derdzinski , Brian D. Metzger , Davide Lazzati

By means of chemical evolution models for galaxies of different morphological type, we have performed a detailed study of the evolution of the cosmic dust properties in different environments: the solar neighbourhood, elliptical galaxies…

天体物理学 · 物理学 2009-11-13 Francesco Calura , Antonio Pipino , Francesca Matteucci

We investigate the star formation and dust extinction properties of very luminous infrared galaxies whose spectra display a strong Hdelta line in absorption and a moderate [OII] emission (e[a] spectrum). This spectral combination has been…

天体物理学 · 物理学 2009-10-31 Bianca M. Poggianti , Alessandro Bressan , Alberto Franceschini

While dust is a major player in galaxy evolution, its relationship with gas and stellar radiation in the early universe is still not well understood. We combine 3D-HST emission line fluxes with far-UV through far-IR photometry in a sample…

星系天体物理 · 物理学 2021-06-02 Gautam Nagaraj , Robin Ciardullo , William Bowman , Caryl Gronwall

We use different assumptions for the combination of dust extinction and star formation up to redshifts z >= 5, as well as detailed modeling of supernova properties, to estimate the number of supernovae that should be observable with various…

天体物理学 · 物理学 2007-05-23 Tomas Dahlen , Claes Fransson

ISO/SWS observations of SN 1987A on day 3425 show no emission in [Fe I] 24.05 microns and [Fe II] 25.99 microns down to the limits of roughly 0.39 Jy and 0.64 Jy, respectively. Assuming a homogeneous distribution of Ti-44 inside 2000 km/s…

天体物理学 · 物理学 2009-11-06 P. Lundqvist , C. Kozma , J. Sollerman , C. Fransson

An unsolved problem in step-wise core-accretion planet formation is that rapid radial drift in gas-rich protoplanetary disks should drive mm-/meter-sized particles inward to the central star before large bodies can form. One promising…

Observations have revealed unexpectedly large amounts of dust in high-redshift galaxies and its origin is still much debated. Valiante et al. (2009, MNRAS, 397, 1661) suggested the net stellar dust production of the quasar host galaxy SDSS…

宇宙学与河外天体物理 · 物理学 2015-05-27 Lars Mattsson

We attempt to make a complete census of massive-star formation within all of GMC G345.5+1.0. This cloud is located one degree above the galactic plane and at 1.8 kpc from the Sun, thus there is little superposition of dust along the…

星系天体物理 · 物理学 2011-11-01 C. López , L. Bronfman , L. -Å. Nyman , J. May , G. Garay

Observations have demonstrated that supernovae efficiently produce dust. This is consistent with the hypothesis that supernovae and asymptotic giant branch stars are the primary producers of dust in the Universe. However, there has been a…

高能天体物理现象 · 物理学 2020-10-28 Jonathan D. Slavin , Eli Dwek , Mordecai-Mark Mac Low , Alex S. Hill

We present high-resolution (0.16$"$) 870um Atacama Large Millimeter/submillimeter Array (ALMA) imaging of 16 luminous (L_IR ~ 4 x 10^12 L_sun) submillimeter galaxies (SMGs) from the ALESS survey of the Extended Chandra Deep Field South.…

The JWST discovery of a number of super-early (redshift $z>10$), blue galaxies requires these systems to be essentially dust-free in spite of their large stellar masses. A possible explanation is that dust is evacuated by radiatively-driven…

星系天体物理 · 物理学 2023-02-08 Fabrizio Fiore , Andrea Ferrara , Manuela Bischetti , Chiara Feruglio , Andrea Travascio

Supernovae (SN) explosions are thought to be an important source of dust in galaxies. At the same time strong shocks from SNe are known as an efficient mechanism of dust destruction via thermal and kinetic sputtering. A critically important…

星系天体物理 · 物理学 2023-12-11 Evgenii O. Vasiliev , Yuri A. Shchekinov

We performed numerical simulations of the common envelope (CE) interaction between two intermediate-mass asymptotic giant branch (AGB) stars and their low-mass companions. For the first time, formation and growth of dust in the envelope is…

Dust continuum observation is one of the best methods to constrain the properties of protoplanetary disks. Recent theoretical studies have suggested that the dust scattering at the millimeter wavelength potentially reduces the observed…

地球与行星天体物理 · 物理学 2020-05-06 Takahiro Ueda , Akimasa Kataoka , Takashi Tsukagoshi

Dust growth is often indirectly inferred observationally in star-forming environments, theoretically predicted to produce mm-sized particles in circumstellar discs, and also presumably witnessed by the predecessors of the terrestrial…

地球与行星天体物理 · 物理学 2025-03-19 Matthäus Schulik , Bertram Bitsch , Anders Johansen , Michiel Lambrechts

The presence of dust in galaxies at redshifts $z>5$ is commonly connected with core collapse supernovae (SN). Galaxies with exceptionally large dust mass, of order of $1 - 3$\% of the galaxy stellar mass, have been detected during the last…

星系天体物理 · 物理学 2025-06-26 Yuri A. Shchekinov , Biman B. Nath

We investigate early galaxy evolution by modeling self-consistently their radially-resolved evolution of gas, stars, heavy elements, and dust content. Our model successfully reproduces various observed properties of JWST-identified galaxies…

星系天体物理 · 物理学 2025-02-19 Daisuke Toyouchi , Hidenobu Yajima , Andrea Ferrara , Kentaro Nagamine

By means of 3-D hydrodynamical simulations, here we evaluate the impact that supernova explosions occurring within wind-driven bubbles have on the survival or destruction of dust grains. We consider both, the dust generated within the…

To investigate the nature of starbursts' dust, we constructed a model of the stars and dust in starburst galaxies and applied it to 30 observed starburst spectral energy distributions (SEDs). The starburst model was constructed by combining…

天体物理学 · 物理学 2008-11-26 K. D. Gordon , D. Calzetti , A. N. Witt