University of Cambridge > Talks.cam > Institute of Astronomy Seminars > High Contrast Studies of Nearby Stars with Project 1640

  Browse A-Z

Log in

University Account External (via Google)

🔐 Log In

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

ℹī¸ Information

High Contrast Studies of Nearby Stars with Project 1640

Download to your calendar using vCal

If you have a question about this talk, please contact Dr Jonathan Gair .

Project 1640 is a new integral field spectrograph and coronagraph at Palomar Observatory. I will demonstrate the capabilities of this new instrument by reviewing one of our first results, the discovery of an M-dwarf companion to Alcor, a main sequence A star at a distance of 25 pc. We confirmed the physical association between the stars using a novel method of high precision relative astrometry applied to two images taken just 100 days apart, demonstrating that the companion shares common parallactic and proper motion with its host star. The same data gave us a low-resolution near-infrared spectrum spanning the J and H bands, enabling us to classify the companion as an M3-M4 dwarf.

This talk is part of the Institute of Astronomy Seminars series.

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

Mill Lane Lecture Room 6 B-Bar Upper Bar, 6 Market Passage, Cambridge CB2 3PF Hauser Forum, West Cambridge, CB3 0GT

Other talks

Title to be confirmed Title TBC Title to be confirmed Title tbc The Neurophenomenology of Surrender: Agency, Renewal, and Social Engagement in Speaking in Tongues What Can a Spectrum Learn? AI Perspectives on the Kohn Laplacian of Sphere Quotients
 

Š 2006-2025 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity