Results 11 to 20 of about 36,246 (179)

Shock-Wave Heating Model for Chondrule Formation: Prevention of Isotopic Fractionation [PDF]

, 2006
Chondrules are considered to have much information on dust particles and processes in the solar nebula. It is naturally expected that protoplanetary disks observed in present star forming regions have similar dust particles and processes, so study of ...
Blandford R. D., Finocchi F., Hitoshi Miura, Hood L. L., Jones R. H., Nelson V. E., Rubin A. E., Rubin A. E., Rubin A. E., Taishi Nakamoto   +9 more
core   +3 more sources

A joint study of early and late spectral distortions of the cosmic microwave background and of the millimetric foreground [PDF]

, 2002
We have compared the absolute temperature data of the CMB spectrum with models for CMB spectra distorted by a single or two heating processes at different cosmic times.
Barrow, Bartlett, Battistelli, Bensadoun, Bersanelli, Bersanelli, Boynton, Boynton, Burigana, Burigana, Burigana, Burigana, Burigana, Burigana, Burigana, C. Burigana, Daly, Danese, Danese, De Amici, De Amici, De Zotti, De Zotti, Ewing, Fixsen, Fixsen, Fixsen, Franceschini, Freese, Guiderdoni, Howell, Howell, Hu, Johnson, Kislyakov, Kogut, Kogut, Kompaneets, Levin, Levin, Mandolesi, Mather, Mather, Mather, Mather, Mennella, Millea, Netterfield, Nordberg, Otoshi, Overduin, Pelyushenko, Penzias, Penzias, Platania, Pryke, Puget, Puzanov, R. Salvaterra, Raffelt, Raghunathan, Roll, Sadat, Salvaterra, Schuster, Silk, Sironi, Sironi, Staggs, Staggs, Stankevich, Stokes, Stompor, Sunyaev, Toffolatti, Weinberg, Welch, Wilkinson, Zeldovich, Zeldovich   +79 more
core   +2 more sources

Synthesized grain size distribution in the interstellar medium [PDF]

, 2012
We examine a synthetic way of constructing the grain size distribution in the interstellar medium (ISM). First we formulate a synthetic grain size distribution composed of three grain size distributions processed with the following mechanisms that govern
A Gauger, A Jones, AK Inoue, AK Inoue, B Hellyer, BD Savage, BT Draine, BT Draine, BT Draine, CF McKee, CJ Lada, CW Ormel, D Calzetti, D Yamasawa, E Dwek, F Hoyle, F Hoyle, H Hirashita, H Hirashita, H Hirashita, H Yan, JC Weingartner, JE O’Donnell, JEL Bishop, JS Mathis, K Liffman, L Mattsson, MAT Groenewegen, NC Wickramasinghe, RS Asano, S Bianchi, S Hofner, S Zhukovska, SH Kim, T Nozawa, T Nozawa, YC Pei   +36 more
core   +2 more sources

A Measurement of the Cosmic Optical Background and Diffuse Galactic Light Scaling from the R < 50 au New Horizons-LORRI Data

The Astrophysical Journal, 2023
Direct photometric measurements of the cosmic optical background (COB) provide an important point of comparison to both other measurement methodologies and models of cosmic structure formation, and permit a cosmic consistency test with the potential to ...
Teresa Symons, Michael Zemcov, Asantha Cooray, Carey Lisse, Andrew R. Poppe   +4 more
doaj   +1 more source

High Resolution Millimeter-Wave Mapping of Linearly Polarized Dust Emission: Magnetic Field Structure in Orion [PDF]

, 1998
We present 1.3 and 3.3 mm polarization maps of Orion-KL obtained with the BIMA array at approximately 4 arcsec resolution. Thermal emission from magnetically aligned dust grains produces the polarization.
Aitken D. K., Aitken D. K., Chrysostomou A., Gold T., Hildebrand R. H., Hough J. H., Lazarian A., M. C. H. Wright, Martin P. G., R. L. Plambeck, R. M. Crutcher, R. Rao, Wilson T. L.   +12 more
core   +2 more sources

Recent progress in theory and observational study of dust grain alignment and rotational disruption in star-forming regions

Frontiers in Astronomy and Space Sciences, 2022
Modern understanding of dust astrophysics reveals that radiative torques (RATs) arising from the radiation–dust interaction can induce two fundamental effects: grain alignment and rotational disruption.
Le Ngoc Tram, Thiem Hoang, Thiem Hoang
doaj   +1 more source

Modelling Dust Evolution in Galaxies with a Multiphase, Inhomogeneous ISM [PDF]

, 2016
We develop a model of dust evolution in a multiphase, inhomogeneous ISM including dust growth and destruction processes. The physical conditions for grain evolution are taken from hydrodynamical simulations of giant molecular clouds in a Milky Way-like ...
Dobbs, Clare, Jenkins, Edward B., Klessen, Ralf, Zhukovska, Svitlana   +3 more
core   +2 more sources

Gap-opening Planets Make Dust Rings Wider

The Astrophysical Journal, 2023
As one of the most commonly observed disk substructures, dust rings from high-resolution disk surveys appear to have different radial widths. Recent observations on PDS 70 and AB Aur reveal not only planets in the disk, but also the accompanying wide ...
Jiaqing Bi, Min-Kai Lin, Ruobing Dong
doaj   +1 more source

Constraints from Dust Mass and Mass Accretion Rate Measurements on Angular Momentum Transport in Protoplanetary Disks [PDF]

, 2017
We investigate the relation between disk mass and mass accretion rate to constrain the mechanism of angular momentum transport in protoplanetary disks. Dust mass and mass accretion rate in Chamaeleon I are correlated with a slope close to linear, similar
Henning, Thomas, Herczeg, Gregory J., Lodato, Giuseppe, Manara, Carlo F., Mohanty, Subhanjoy, Mulders, Gijs D., Pascucci, Ilaria, Testi, Leonardo   +7 more
core   +2 more sources

Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs

The Astrophysical Journal Supplement Series, 2023
Astronomical observations of the polarized intensity of scattered visible light have revealed the presence of dust envelopes around different types of evolved stars.
Juan Carlos Gómez Martín, Olga Muñoz, Julia Martikainen, Daniel Guirado, Isabel Tanarro, Ramón J. Peláez, Belén Maté, Miguel Jiménez-Redondo, Víctor J. Herrero, Marco Peiteado, Teresa Jardiel   +10 more
doaj   +1 more source