output
20102026
most citedExploring Cosmic Origins with CORE: Survey requirements and mission design

124 citations

Showing 2019 · astro-ph.GAShow all

9 papers · 2 filters

astro-ph.GA2019★ 10 cited

Gamma-ray Burst Afterglows: Time-Varying Extinction, Polarization, and Colors due to Rotational Disruption of Dust Grains

Thiem Hoang, Nguyen Chau Giang, Le Ngoc Tram

Prompt optical emission of gamma-ray bursts (GRBs) is known to have important effects on the surrounding environment. In this paper, we study rotational disruption and alignment of…

astro-ph.GA2019★ 50 cited

Physical Model of Dust Polarization by Radiative Torque Alignment and Disruption and Implications for Grain Internal Structures

Hyeseung Lee, Thiem Hoang, Ngan Le +1

Dust polarization depends on the physical and mechanical properties of dust, as well as the properties of local environments. To understand how dust polarization varies with grain…

astro-ph.GA2019★ 22 cited

Supernova Shocks in Molecular Clouds: Velocity Distribution of Molecular Hydrogen

William T. Reach, Le Ngoc Tram, Matthew Richter +2

Supernovae from core-collapse of massive stars drive shocks into the molecular clouds from which the stars formed. Such shocks affect future star formation from the molecular cloud…

astro-ph.GA2019★ 13 cited

Modeling rotational disruption of grains and microwave emission from spinning dust in AGB envelopes

Le Ngoc Tram, Thiem Hoang, Archana Soam +2

Radio observations of some Asymptotic Giant Branch (AGB) star envelopes show the excess emission at frequencies below 100 GHz which cannot be explained by thermal dust emission (he…

astro-ph.GA2019★ 1 cited

Time-Varying Extinction, Polarization, and Colors of Type Ia Supernovae due to Rotational Disruption of Dust Grains

Nguyen Chau Giang, Thiem Hoang, Le Ngoc Tram

Photometric and polarimetric observations toward type Ia supernovae (SNe Ia) frequently report an unusually low total-to-selective extinction ratio () and small peak…

astro-ph.GA2019★ 15 cited

Chemistry on Rotating Grain Surface: Ro-Thermal Desorption of Molecules from Ice Mantles

Thiem Hoang, Ngo-Duy Tung

It is widely believed that water and complex organic molecules (COMs) first form in the ice mantle of dust grains and are subsequently returned into the gas due to grain heating by…

astro-ph.GA2019★ 38 cited

The MBHBM* Project -- I: Measurement of the Central Black Hole Mass in Dwarf Galaxy NGC 3504 Using Molecular Gas Kinematics

Dieu D. Nguyen, Mark den Brok, Anil C. Seth +19

We present the first measurement of the mass of a supermassive black hole (SMBH) in the nearby double-barred spiral galaxy NGC 3504 as part of the Measuring Black Holes Below the M…

astro-ph.GA2019★ 27 cited

Rotational Desorption of Ice Mantles and Complex Molecules from Suprathermally Rotating Dust Grains around Young Stellar Objects

Thiem Hoang, Le Ngoc Tram

Ice mantles on dust grains play a central role in astrochemistry. Water and complex organic molecules (COMs) are thought to first form on the ice mantles and subsequently are relea…

astro-ph.GA2019★ 5 cited

Dust rotational dynamics in non-stationary shock: rotational disruption of nanoparticles by stochastic mechanical torques and spinning dust emission

Le Ngoc Tram, Thiem Hoang

In a previous work, Hoang and Tram discovered a new mechanism for destruction of nanoparticles due to suprathermal rotation of grains in stationary C-shocks, which is termed rotati…