What the Sub-mm Variability of Embedded Protostars Tells Us about Accretion: Past, Present, and Future

Event Start:
2020-04-27T15:00:00
Event End:
2020-04-27T16:00:00
Event Information:

After four years of monitoring deeply embedded protostars in the sub-mm, the JCMT Transient Survey has uncovered almost two dozen variable sources, corresponding to >30% of the brightest protostars. Period-fitting analyses find that a significant fraction of these protostars are associated with timescales of 3-8 years and fractional sub-mm amplitudes of 5-50%. We compare the strength of variability in the sub-mm with simultaneous observations at near-/mid-IR wavelengths for half our sample, revealing excellent light curve agreement.

Event Location:
Remote via zoom
Speaker:
Doug Johnstone (HAA)
Related Upcoming Events:
Add to Calendar Event Start: 2020-04-27T15:00:00 Event End: 2020-04-27T16:00:00 What the Sub-mm Variability of Embedded Protostars Tells Us about Accretion: Past, Present, and Future Event Information: After four years of monitoring deeply embedded protostars in the sub-mm, the JCMT Transient Survey has uncovered almost two dozen variable sources, corresponding to >30% of the brightest protostars. Period-fitting analyses find that a significant fraction of these protostars are associated with timescales of 3-8 years and fractional sub-mm amplitudes of 5-50%. We compare the strength of variability in the sub-mm with simultaneous observations at near-/mid-IR wavelengths for half our sample, revealing excellent light curve agreement. Event Location: Remote via zoom

Source URL: https://phas.ubc.ca/what-sub-mm-variability-embedded-protostars-tells-us-about-accretion-past-present-and-future