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special notice

Special Notice #418: RX And monitoring needed for VLA observations

July 5, 2016: Further to AAVSO Alert Notice 539, Deanne Coppejans and colleagues request optical monitoring of the Z Cam dwarf nova RX And in support of their campaign to observe it with the Very Large Array (VLA) in their ongoing radio jet research.

Deanne writes in a post to the AAVSO Forum thread on this campaign: "We are going to try and catch RX And in quiescence again in the next three weeks. The optical coverage of it is still sparse, so any observations you take of it will be extremely useful."

Special Notice #41: Chart Available for N Oph 07 [V2615 Oph]

March 23, 2007

You can now retrieve a chart and sequence for the apparent nova in Ophiuchus [V2615 Oph] from:

obsolete link: [http://www.aavso.org/observing/charts/vsp/]

2016 link: https://www.aavso.org/vsp

enter N Oph 07 for the object name. When conditions permit, we will obtain an all-sky calibration for this field from Sonoita Research Observatory.

Arne Henden

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SUBMIT OBSERVATIONS TO THE AAVSO

Special Notice #406: KIC 02856960 entering eclipse window

August 7, 2015:  Further to AAVSO Alert Notice 525, we are entering the critical period of observations for KIC 02856960.  Time series observations are urgently requested for this eclipsing binary beginning immediately (2015 August 07, JD 2457242) and continuing for the next five days, through the end of 2015 August 12.

Special Notice #405: Request for Monitoring of V4641 Sgr

August 4, 2015:  Dr. Gregory Sivakoff (U. of Alberta) has requested optical monitoring of the galactic microquasar V4641 Sgr beginning immediately, and continuing for the next 120 days, or until it is no longer observable from your location.

Special Notice #398: Bright Transient in Sgr (PNV J18142514-2554343)

February 13, 20115:  Patrick Schmeer (SPK, Bischmisheim, Germany) reports the announcement on the CBAT Transient Object Confirmation Page (TOCP) of the discovery of a bright transient in Sgr on 2015 February 12.852 at an unfiltered magnitude of 10.9 by K. Nishiyama, using a 105-mm f/4 camera lens with an SBIG STL6303E CCD camera.  Nishiyama notes nothing is present on a previous image from 2015 February 02.887.  The transient has been independently confirmed with two pre-discovery images: by H.

Special Notice #377: Reported outburst of the WZ Sge star AL Comae

December 6, 2013: Observer Carlo Gualdoni reports via the cvnet-outburst mailing list that the WZ Sge-type dwarf nova AL Comae is in outburst, with a magnitude of V=12.74 on 2013 December 6.185 (JD 2456633.1185).  Gary Poyner notes on the BAAVSS mailing list that this is the first observed outburst of AL Com since October 2007.  Both visual observations and CCD time series are encouraged.

AAS Subject Key Words

AAS Subject Key Words

as of 3/16/012

USE ONLY THESE WHEN ADDING ALERT NOTICE OR SPECIAL NOTICE TO ADS

Special Notice #256: Request for fast optical time series of SN 2011fe

September 16, 2011: Dr. Bradley Schaefer (LSU) requests fast time series of SN 2011fe over the next several weeks to attempt the detection of fast optical variations in supernova light.

The following request was prepared by Dr. Schaefer which we forward at his request:

Special Notice #253: Request for Observations of MAXI J1836-194

September 10, 2011: Dr. Gregory Sivakoff (U. of Alberta) requests observations of the X-ray binary star MAXI J1836-194 as part of the JACPOT collaboration studying stellar radio jets from compact binaries.  There is no predetermined duration for this campaign, but observations are requested now to coincide with ongoing X-ray and radio observations.

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