Archive for September, 2017

The idea of this post came to me on my second or third day in Chile when I noticed its flag on some boats. As today is my last day at work, perhaps it is the best (and last) opportunity to make a post about it. (So, practically it is either now or never.) My […]

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Proper acknowledgments

By grigoris | Filed in Astronomy

From a friend with a similar interest in martial arts. He noticed the following acknowledgment (by Zeng & Sasselov 2013, PASP, 125, 227): We acknowledge partial support for this work by NASA cooperative agreement NNX09AJ50A (Kepler Mission science team). We would like to thank Michail Petaev and Stein Jacobsen for their valuable comments and suggestions. […]

Resolving the circumstellar environment of the Galactic B[e] supergiant star MWC 137 from large to small scales Michaela Kraus, Tiina Liimets, Cristina E. Cappa, Lydia S. Cidale, Dieter H. Nickeler, Nicolas U. Duronea, Maria L. Arias, Diah S. Gunawan, Mary E. Oksala, Marcelo Borges Fernandes, Grigoris Maravelias, Michel Cure, Miguel Santander-Garcia The Galactic object MWC […]

Tough days the last days

By grigoris | Filed in Astronomy

A couple of hectic weeks finished on last Friday. After two trips to La Serena to observe from the magnificent facilities at CTIO and LCO (posts still pending since there is an overwhelming amount of photos and videos!), I had an intense week to finalize the paper I am preparing (for some looong time now). […]

Linking classical to dwarf novae

By grigoris | Filed in Astronomy

In a recent Nature (Shara et al. 2017, Nature, 548, 558) letter, the authors found that a current dwarf nova is actually the Nova Scorpii AD 1437, recorded by Korean astronomers at that time. What is interesting is that they managed to trace both the dwarf nova’s position and the center of the observed gas […]

An IFA-UV seminar talk

By grigoris | Filed in Astronomy

Yesterday, I had finally the opportunity to give a seminar talk at the Instituto de Física y Astronomía de la Universidad de Valparaíso, where I am currently based (and only for about a month more …) “What have we learned from observations of B[e] Supergiants ?” Abstract: B[e] Supergiants are a rare phase among the […]