St Andrews Research Repository

St Andrews University Home
View Item 
  •   St Andrews Research Repository
  • Physics & Astronomy (School of)
  • Physics & Astronomy
  • Physics & Astronomy Theses
  • View Item
  •   St Andrews Research Repository
  • Physics & Astronomy (School of)
  • Physics & Astronomy
  • Physics & Astronomy Theses
  • View Item
  •   St Andrews Research Repository
  • Physics & Astronomy (School of)
  • Physics & Astronomy
  • Physics & Astronomy Theses
  • View Item
  • Login
JavaScript is disabled for your browser. Some features of this site may not work without it.

Star formation in the Perseus complex : a tale of seven clusters

Thumbnail
View/Open
Tatiana-Pavlidou-PhD-Thesis.pdf (74.10Mb)
Date
13/06/2022
Author
Pavlidou, Tatiana
Supervisor
Scholz, Alexander
Cyganowski, Claudia Jane
Funder
Science and Technology Facilities Council (STFC)
Grant ID
ST/R000824/1
Metadata
Show full item record
Altmetrics Handle Statistics
Altmetrics DOI Statistics
Abstract
Following the recent advances in astrometry of Gaia DR2, I use its photometric and kinematic data to explore the structure of the star forming region associated with the molecular cloud of Perseus. Apart from the two well-known clusters, IC 348 and NGC 1333, I present five new clusters, which contain between 30 and 300 members, named Autochthe, Alcaeus, Mestor, Electryon and Heleus. I construct reliable membership lists for the seven clusters and of the dispersed population of the complex. I investigate the youth of individual sources within the clusters, and outside, using a combination of youth indicators from Gaia, WISE, Spitzer, and Planck data. These give the relative ages of the clusters and yield lists of young sources (τ[sub](age) ≲ 5 Myr). Based on this work, IC 348 spans ages from 1 Myr up to 5 Myr. Autochthe and NGC 1333 are the youngest clusters at 1 Myr. These three clusters constitute the star-forming centers of the cloud. Heleus and Mestor have average ages of about 4 Myr while Alcaeus and Electryon are at about 5 Myr. NGC 1333, Autochthe and IC 348 have the highest disc fractions (66±14%, 58±30% and 41±7%) while the rest four clusters have fractions below ∼30%. Finally I construct the system Mass Function (MF) for all seven clusters by determining the masses of the cluster members using 2MASS photometry. For 0.08 < m/M[sub]☉︎ < 1.4 the MF slopes are in agreement for the seven clusters and range between 0.5 and 1.3. These are by and large smaller than the Kroupa (2001) slope of 1.3. The region of Perseus exhibits a bimodal nature in proper motion, spatial distribution, and age span. This bimodality is supported by a star-formation scenario where the seven clusters have formed from two kinematically distinct sub-clouds.
DOI
https://doi.org/10.17630/sta/242
Type
Thesis, PhD Doctor of Philosophy
Collections
  • Physics & Astronomy Theses
URI
http://hdl.handle.net/10023/26681

Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

Advanced Search

Browse

All of RepositoryCommunities & CollectionsBy Issue DateNamesTitlesSubjectsClassificationTypeFunderThis CollectionBy Issue DateNamesTitlesSubjectsClassificationTypeFunder

My Account

Login

Open Access

To find out how you can benefit from open access to research, see our library web pages and Open Access blog. For open access help contact: openaccess@st-andrews.ac.uk.

Accessibility

Read our Accessibility statement.

How to submit research papers

The full text of research papers can be submitted to the repository via Pure, the University's research information system. For help see our guide: How to deposit in Pure.

Electronic thesis deposit

Help with deposit.

Repository help

For repository help contact: Digital-Repository@st-andrews.ac.uk.

Give Feedback

Cookie policy

This site may use cookies. Please see Terms and Conditions.

Usage statistics

COUNTER-compliant statistics on downloads from the repository are available from the IRUS-UK Service. Contact us for information.

© University of St Andrews Library

University of St Andrews is a charity registered in Scotland, No SC013532.

  • Facebook
  • Twitter