A Comparison of the Simulations and Observations for a Nearby Spiral Arm

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F21%3A00122002" target="_blank" >RIV/00216224:14310/21:00122002 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3389/fspas.2021.642776" target="_blank" >https://doi.org/10.3389/fspas.2021.642776</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fspas.2021.642776" target="_blank" >10.3389/fspas.2021.642776</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Comparison of the Simulations and Observations for a Nearby Spiral Arm

Popis výsledku v původním jazyce

The analysis is focused on the ability of galactic open clusters to trace the spiral arms, based on the recent data releases from Gaia. For this, a simple 1D description of the motion of spiral arms and clusters is introduced. As next step, results are verified using a widely accepted kinematic model of the motion in spiral galaxies. As expected, both approaches show that open clusters older than about 100 Myr are bad tracers of spiral arms. The younger clusters (ideally &lt; 30 Myr) should be used instead. This agrees with the most recent observational evidence. The latest maps of the diffuse interstellar bands are compared with the spiral structure of the Milky Way and the Antennae Galaxies. The idea of these bands being useful for studying a galactic structure cannot be supported based on the current data.

Název v anglickém jazyce

A Comparison of the Simulations and Observations for a Nearby Spiral Arm

Popis výsledku anglicky

The analysis is focused on the ability of galactic open clusters to trace the spiral arms, based on the recent data releases from Gaia. For this, a simple 1D description of the motion of spiral arms and clusters is introduced. As next step, results are verified using a widely accepted kinematic model of the motion in spiral galaxies. As expected, both approaches show that open clusters older than about 100 Myr are bad tracers of spiral arms. The younger clusters (ideally &lt; 30 Myr) should be used instead. This agrees with the most recent observational evidence. The latest maps of the diffuse interstellar bands are compared with the spiral structure of the Milky Way and the Antennae Galaxies. The idea of these bands being useful for studying a galactic structure cannot be supported based on the current data.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Frontiers in Astronomy and Space Sciences

ISSN

2296-987X

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

20

Strana od-do

„642776“

Kód UT WoS článku

000668346400001

EID výsledku v databázi Scopus

2-s2.0-85117600595