Monitoring of S Dor requested for multiwavelength campaign

Active Dates: Feb. 23, 2012 – May 31, 2012


Abstract:

Dr. Noel Richardson, Georgia State University, has requested monitoring of the luminous blue variable (LBV) prototype S Doradus as part of a multiwavelength campaign he is coordinating to study the photosphere of this star. At present the observations planned include: UV Spectroscopy from HST, Optical spectroscopy from CTIO and an amateur in Australia, Near-IR Spectroscopy from SOAR (pending approval), Mid-IR photometry from Gemini (pending approval). While these observations will likely take place in May 2012, optical monitoring beginning now is important. Your observations will not only be very interesting but also necessary to correlate all of the observations and interpret the variability taking place in S Dor. S Dor is particularly interesting at present because its current state allows the deepest look into its photosphere since the 1960s, leading to a better understanding of its stellar and wind properties. To quote Dr. Richardson, "...the types of variability we are really wanting to probe are the long term trends and the decline to optical minimum it is going through."

Justification:

Your observations will not only be very interesting but also necessary to correlate all of the observations and interpret the variability taking place in S Dor. S Dor is particularly interesting at present because its current state allows the deepest look into its photosphere since the 1960s, leading to a better understanding of its stellar and wind properties. To quote Dr. Richardson, "...the types of variability we are really wanting to probe are the long term trends and the decline to optical minimum it is going through."

Requested Data Types:

Photometry



Spectroscopy Lines:

No spectroscopy lines provided

Photometry Filters:

No photometry filters provided

Comparison Stars:

No comparison stars provided


Co-Authorship

Observers are not eligible for co-authorship.

Additional Observer Input:

Not provided

Additional Submission Location:

Not provided


Forum URL

N/A


Notes:

Principal Investigator: Dr. Noel Richardson; Imported Campaign (Alert Notice #453)