SILCC-Zoom: The early impact of ionizing radiation on forming molecular clouds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F19%3A00521957" target="_blank" >RIV/67985815:_____/19:00521957 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1093/mnras/sty2938" target="_blank" >https://doi.org/10.1093/mnras/sty2938</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/mnras/sty2938" target="_blank" >10.1093/mnras/sty2938</a>

Jazyk výsledku

angličtina

Název v původním jazyce

SILCC-Zoom: The early impact of ionizing radiation on forming molecular clouds

Popis výsledku v původním jazyce

We present our first sub-parsec resolution radiation hydrodynamic simulations of two molecular clouds self-consistently forming from a turbulent, multiphase ISM. The clouds have similar initial masses of few 10(4) M-circle dot, escape velocities of -5 km s(-1), and a similar initial energy budget. We follow the formation of star clusters with a sink-based model and the impact of radiation from individual massive stars with the tree-based radiation transfer module TREERAY. Photoionizing radiation is coupled to a chemical network to follow gas heating, cooling, and molecule formation and dissociation. For the first 3 Myr of cloud evolution, we find that the overall star formation efficiency is considerably reduced by a factor of similar to 4 to global cloud values of < 10 per cent as the mass accretion of sinks that host massive stars is terminated after less than or similar to 1 Myr. Despite the low efficiency, star formation is triggered across the clouds.

Název v anglickém jazyce

SILCC-Zoom: The early impact of ionizing radiation on forming molecular clouds

Popis výsledku anglicky

We present our first sub-parsec resolution radiation hydrodynamic simulations of two molecular clouds self-consistently forming from a turbulent, multiphase ISM. The clouds have similar initial masses of few 10(4) M-circle dot, escape velocities of -5 km s(-1), and a similar initial energy budget. We follow the formation of star clusters with a sink-based model and the impact of radiation from individual massive stars with the tree-based radiation transfer module TREERAY. Photoionizing radiation is coupled to a chemical network to follow gas heating, cooling, and molecule formation and dissociation. For the first 3 Myr of cloud evolution, we find that the overall star formation efficiency is considerably reduced by a factor of similar to 4 to global cloud values of < 10 per cent as the mass accretion of sinks that host massive stars is terminated after less than or similar to 1 Myr. Despite the low efficiency, star formation is triggered across the clouds.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/GB14-37086G" target="_blank" >GB14-37086G: Centrum Alberta Einsteina pro gravitaci a astrofyziku</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Monthly Notices of the Royal Astronomical Society

ISSN

1365-2966

e-ISSN

—

Svazek periodika

482

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

22

Strana od-do

4062-4083

Kód UT WoS článku

000462312600084

EID výsledku v databázi Scopus

2-s2.0-85067260292