Daily Image

Click here or on the picture for a full size image.

Today's Colloquium: A long wavelength view of low-mass star formation

Submitter: Anna Scaife
Description: Compact radio emission provides a reliable method for the detection of low luminosity young stellar objects (YSOs), and is particularly useful for detecting the earliest stages of protostellar evolution where the source itself may still be heavily embedded in its natal dust envelope.

For such Class 0 and Class I objects the dominant radio emission mechanism is expected to be free-free, however unlike massive YSOs the way in which this radio emission is produced remains a subject of debate. As larger samples of radio YSOs become available the relationship between the radio luminosity of the Class 0/I population and their wider global properties is now being clarified. Furthermore, the broader scientific applications of such samples are also becoming increasingly apparent.

These improved constraints on the nature of the radio emission from YSOs are now contributing to our understanding of not only the evolutionary physics of proto-stars themselves but also their wider impact on their surroundings. I will discuss the physics of the radio emission, the emerging relationship between this emission and other properties of YSOs and some of the potential applications for studies exploiting this emission.
Copyright: Anna Scaife
  Follow us on Twitter
Please feel free to submit an image using the Submit page.