Results 141 to 150 of about 362,838 (268)

Long-period Variable Stars in NGC 147 and NGC 185. II. Their Dust Production

The Astrophysical Journal
This study presents a comparative analysis of mass-loss and dust production rates in the dwarf galaxies NGC 147 and NGC 185, focusing on long-period variables (LPVs) and pulsating asymptotic giant branch stars as primary indicators of dust feedback into ...
Hamidreza Mahani, Atefeh Javadi, Jacco Th. van Loon, Francisca Kemper, Roya Hamedani Golshan, Iain McDonald, Habib G. Khosroshahi, Hedieh Abdollahi, Sajjad Mahdizadeh   +8 more
doaj   +1 more source

SpitzerLimits on Dust Emission and Optical Gas Absorption Variability around Nearby Stars with Edge‐on Circumstellar Disk Signatures [PDF]

, 2007
Seth Redfield, J. E. Kessler-Silacci, Lucas A. Cieza   +2 more
openalex   +1 more source

Detection of an inner gaseous component in a Herbig Be star accretion disk: Near- and mid-infrared spectro-interferometry and radiative transfer modeling of MWC 147

, 2007
We study the geometry and the physical conditions in the inner (AU-scale) circumstellar region around the young Herbig Be star MWC 147 using long-baseline spectro-interferometry in the near-infrared (NIR K-band, VLTI/AMBER observations and PTI archive ...
Berrilli F., Bertout C., Boehm T., Cohen M., Egret D., Friedjung M., Hog E., Jain S. K., Keiichi Ohnaka, Lynden-Bell D., Mannings V., Natta A., Nisini B., Oliver R. J., Ossenkopf V., Shakura N. I., Stefan Kraus, Thomas Preibisch, Turon C., van den Ancker M. E., Vieira S. L. A., Wesselius P. R.   +21 more
core   +1 more source

Two Decades of Dust Evolution in SN 2005af through JWST, Spitzer, and Chemical Modeling

The Astrophysical Journal
The evolution of dust in core-collapse supernovae (SNe), in general, is poorly constrained owing to a lack of infrared observations a few years after explosion. Most theories of dust formation in SNe heavily rely only on SN 1987A.
Arkaprabha Sarangi, Szanna Zsíros, Tamás Szalai, Laureano Martinez, Melissa Shahbandeh, Ori D. Fox, Schuyler D. Van Dyk, Alexei V. Filippenko, Melina Cecilia Bersten, Ilse De Looze, Chris Ashall, Tea Temim, Jacob E. Jencson, Armin Rest, Dan Milisavljevic, Luc Dessart, Eli Dwek, Nathan Smith, Samaporn Tinyanont, Thomas G. Brink, WeiKang Zheng, Geoffrey C. Clayton, Jennifer Andrews   +22 more
doaj   +1 more source

Constraining the Amount of Circumstellar Matter and Dust around Type Ia Supernovae through Near-Infrared Echoes [PDF]

, 2014
Keiichi Maeda, Takaya Nozawa, T. Nagao, Kentaro Motohara   +3 more
openalex   +1 more source

Photophoretic Structuring of Circumstellar Dust Disks

, 2008
We study dust accumulation by photophoresis in optically thin gas disks. Using formulae of the photophoretic force that are applicable for the free molecular regime and for the slip-flow regime, we calculate dust accumulation distances as a function of ...
Augereau J.-C., Borysow A., Hidy G. M., Liseau R., Oliver Krauss, Taku Takeuchi, Tsuji T., Tsuji T.   +7 more
core   +1 more source

The Near-infrared Echo from SN 2023xgo: Evidence for a Massive Presupernova Eruption in a Type Ibn/Icn Supernova

The Astrophysical Journal Letters
We present near-infrared (NIR) and optical observations and analysis of the Type Ibn/Icn supernova (SN) 2023xgo, spanning the period from 2 to 100 days past explosion.
Masayuki Yamanaka, Takahiro Nagayama
doaj   +1 more source

Spinning Dust Emission from Circumstellar Disks and Its Role In Excess Microwave Emission [PDF]

, 2018
Thiem Hoang, Nguyen-Quynh Lan, Nguyen-Anh Vinh, Yun-Jeong Kim   +3 more
openalex   +1 more source

A search for precursors of Ultracompact HII Regions in a sample of luminous IRAS sources. III: Circumstellar Dust Properties [PDF]

, 2000
S. Molinari, J. Brand, R. Cesaroni, F. Palla   +3 more
openalex   +1 more source

Discovery of stars surrounded by iron dust in the LMC

, 2019
We consider a small sample of oxygen-rich, asymptotic giant branch stars in the Large Magellanic Cloud, observed by the Spitzer Space Telescope, exhibiting a peculiar spectral energy distribution, which can be hardly explained by the common assumption ...
Dell'Agli, F., Di Criscienzo, M., García-Hernández, D. A., Marini, E., Mattsson, L., Puccetti, S., Ventura, P.   +6 more
core   +1 more source