multiwavelength

Alert Notice 608: TT Ari monitoring requested for VLA observations

December 1, 2017: Dr. Deanne Coppejans (Northwestern University) and colleagues have requested AAVSO assistance in monitoring the cataclysmic variable TT Ari in support of observations scheduled to be made with the Very Large Array (VLA) in December 2017.

Dr. Coppejans writes:

Alert Notice 257: Request to monitor 2138+43 SS Cygni for multiwavelength observations

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
INTERNET:  aavso@aavso.org
Tel. 617-354-0484       FAX 617-354-0665

AAVSO ALERT NOTICE 257 (April 28, 1999)

REQUEST TO MONITOR 2138+43 SS CYGNI FOR MULTIWAVELENGTH OBSERVATIONS

Nova Delphini 2013: The story so far

Nova Delphini 2013 (also named V339 Del) is the biggest cosmic event in variable star astronomy this year, and this naked-eye nova is providing the community a wealth of new data on this important class of objects.  The amateur astronomical community has made an enormous contribution of data for Nova Del so far, and now is a good time to review all that's happened so far in this nova outburst, and how the amateur community has played a role.

Special Notice #294: CH Cyg observing campaign continued through 2012

September 11, 2012:  As announced in AAVSO Alert Notice 454 (http://www.aavso.org/aavso-alert-notice-454) and updated in AAVSO Special Notices #267 and #268 (http://www.aavso.org/aavso-special-notice-267 and -268), Dr. Margarita Karovska (Harvard-Smithsonian Center for Astrophysics) is carrying out a multiwavelength campaign on the symbiotic variable CH Cyg this year. The satellite observations have taken place, and Dr.

Special Notice #262: Long-term monitoring of AGN targets extended

November 2, 2011:  The observing campaign described in AAVSO Alert Notice 443 (M. Templeton) has been extended through the end of November 2011. One of the original targets, NGC 6814, has been removed from the target list for the remainder of the campaign.