Episodic accretion in focus: Revealing the environment of FU Orionis-type stars
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The earliest phases of star formation are characterised by intense mass accretion from the circumstellar disk to the central star. One group of young stellar objects, the FU Orionis-type stars exhibit accretion rate peaks accompanied by bright eruptions. The occurance of these outbursts might solve the luminosity problem of protostars, play a key role in accumulating the final star mass, and have a significant effect on the parameters of the envelope and the disk. In the framework of the Structured Accretion Disks ERC project, we are conducting a systematic investigation of these sources with millimeter interferometry to examine whether they represent normal young stars in exceptional times or they are unusual objects. Our results show that FU Orionis-type stars can be similar to both Class I and Class II systems and may be in a special evolutionary phase between the two classes with their infall-driven episodic eruptions being the main driving force of the transition.
Original language | English |
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Journal | Proceedings of the International Astronomical Union |
Volume | 359 |
Pages (from-to) | 87-90 |
Number of pages | 4 |
ISSN | 1743-9213 |
DOIs | |
Publication status | Published - 13 Jan 2020 |
Bibliographical note
Publisher Copyright:
© 2020 International Astronomical Union.
- circumstellar matter, molecular data, stars: Pre-main-sequence
Research areas
Links
- https://arxiv.org/pdf/2101.09204.pdf
Submitted manuscript
ID: 269667994