Thanks Thierry, It will be interesting to se if the Lisa can be used. Your work is encouraging. The eShel is a magnificent spectrograph, but beyond the means...
1912
Thierry Garrel
gabalou@...
Jul 7, 2012 4:16 pm
Lhires 600gr could be a good idea, specially if you can go deep blue. But i think LhiresIII is a more efficient spectrograph than fiber feed eshell cause...
1913
R. Stencel
colorado.ida@...
Jul 8, 2012 3:54 am
Congrats again Jeff - well deserved recognition!...
Hello, the great news is that i haven't done the right star ! Analaysis by Cezary Galan concluded that my spectra is good, but it is a brighter B7 type star...
1916
Robin Leadbeater
niborl2000
Jul 10, 2012 9:15 am
Well I did wonder where the emission had gone but nobody commented so.... At least you now have a nice nearby hot star for flux calibration ;-) Cheers Robin ...
1917
Jeff
hposoft
Jul 10, 2012 3:29 pm
Hi Thierry, I have done some searching of papers and will list them on the web site shortly. In some of hte papers I see there is a large red emission horn...
1918
Robin Leadbeater
niborl2000
Jul 10, 2012 4:13 pm
Hi Jeff, The campaign webpage shows some snapshots of H alpha at different phases which shows the transition from almost pure emission outside eclipse to...
1919
Jeff
hposoft
Jul 10, 2012 4:26 pm
For those interested, there is an old paper that shows the hydrogen alpha red emission horn (wing). PASP 87, 305-310 1975 April, AZ Cassiopeia at the 1956-57...
1920
Thierry Garrel
gabalou@...
Jul 11, 2012 4:21 pm
Hi Jeff, Robin, so after a "standard star", thanks to Robin, i've finally managed, or hope so, to catch, the right star at a couple of arc minutes away. The ...
1921
Olivier Thizy
olivier.thizy
Jul 11, 2012 4:27 pm
Thierry, I got a reply from Cezary Galan who is the PI on this campaign. He said that a resolution of 10000 is a minimum to get useful data. Of course, ...
1922
Jeff
hposoft
Jul 11, 2012 4:27 pm
Hi Thierry, Great job! I'm impressed. Some pros have said this star system is beyond small telescope spectroscopy, but you have shown what can be done. Jeff. ...
1923
Jeff
hposoft
Jul 14, 2012 3:28 pm
Dear Colleagues, As seen below it now appears that high resolution spectra of AZ Cas can obtained with a Lhires III with a 2400 l/mm grating and modest...
1924
Jeff
hposoft
Jul 14, 2012 5:41 pm
Dear Colleagues, Phil Bennett (pbennett@...) has provided two new Poster Papers and a PowerPoint talk on Epsilon Aurigae. These were presented at the...
1925
Jose Ribeiro
zerib57
Jul 15, 2012 11:13 am
Hi Jeff, <<Phil Bennett (pbennett@...) has provided two new Poster Papers and a PowerPoint talk on Epsilon Aurigae. These were presented at the HVAR Cool...
1926
R. Stencel
colorado.ida@...
Jul 15, 2012 2:32 pm
Chances are the distance is overestimated, but hopefully better evidence will be forthcoming....
1927
Jeff
hposoft
Jul 15, 2012 3:10 pm
Hi Bob, We look forward to seeing your papers. Jeff Hopkins Phoenix Observatory (187283) Counting Photons Phoenix, Arizona USA www.hposoft.com/Astro/astro.html...
1928
Jeff
hposoft
Jul 15, 2012 3:14 pm
Hi Jose, I wish I could have made it to the meeting. Too far, too costly since I am retired on a fixed income. Yes, there is indeed still much to be learned...
1929
Robert Stencel
coloida@...
Jul 15, 2012 3:16 pm
Brian and I are working on the paper discussing the results of his dissertation efforts - stay tuned. To: EpsilonAurigae@yahoogroups.com From:...
1930
Jeff
hposoft
Jul 15, 2012 3:47 pm
A new Yahoo forum has been created for the AZ Cas Campaign. If you are interested, go to http://groups.yahoo.com/ and search on AZCas to join the group. Jeff ...
1931
Robin Leadbeater
niborl2000
Jul 15, 2012 4:17 pm
I had a look at the this correlation a while back and I must admit I found it difficult to make a case. While there are times where a correlation appears to...
1932
Olivier Thizy
olivier.thizy
Jul 16, 2012 12:11 pm
Hello, At Hvar, Bob Stencel wasn't able to attend in person but recorded a video that was projected there. A interesting & intense discussion followed that...
1933
Jeff
hposoft
Jul 19, 2012 4:18 pm
Dear Colleagues, As coordinated with the AZ Cas Campaign organizer Cezary Galan, a Campaign spectroscopy web site has been developed to provide information on...
1936
Jeff
hposoft
Jul 19, 2012 5:16 pm
If observers wish to be part of the AZ Cas Campaign, I suggest they use the Campaign web site. The main web will have a Spectroscopy section set up in about...
1943
Jeff
hposoft
Jul 19, 2012 8:35 pm
Hi Olivier, I am saddened by your resposnse. I was perhaps not clear. The fits files I tried to download will not work. It has nothing to do with the quality...
1945
Jeff
hposoft
Jul 28, 2012 3:37 pm
Dear Colleagues, For those interested Dr. Bob's HVAR presentation can be seen at http://www.youtube.com/watch?v=j0cBWC2_mek. Jeff Hopkins Phoenix Observatory ...
1946
Jose Ribeiro
zerib57
Jul 28, 2012 5:25 pm
Hi, Did by any chance Dr. Bob record the subsequent discussion that took place after his talk? If so, could it be possible to make it available to me? I'd be...
1947
Robert Stencel
coloida@...
Jul 29, 2012 4:24 am
Thanks for the interest, Jose. Unfortunately, I didn't record the subsequent discussion, which was wide ranging. To: EpsilonAurigae@yahoogroups.com From:...
1948
Jose Ribeiro
zerib57
Jul 29, 2012 11:41 am
Thank you Robert! It was one of the most interesting sessions of the colloquium. Unfortunately the bad internet connection at Hvar forced the end of discussion...
1949
Jeff
hposoft
Jul 29, 2012 8:41 pm
A new book will be available the end of September. "Observing and Measuring Double Stars" This is a Patrick Moore series book. Laurent Corp, one of out...
