گروه کیهان‌شناسی

سمینار فوق العاده  این هفته را آقای بهنام جوانمردی از دانشکده نجوم دانشگاه بن ارائه خواهند کرد. عنوان و چکیدهٔ سمینار ایشان به شرح زیر است:

Finding dwarf galaxies with small telescopes

Abstract: In the framework of the standard model of cosmology, galaxies form in a hierarchical process. In this scenario, many substructures (or satellites) are expected to exist around massive (Milky Way-like) galaxies. The number, spatial distribution, and other properties of these satellite galaxies can be used to test different models of structure formation. Therefore, increasing the number of known dwarf satellite galaxies outside the Local Group is very crucial. We recently launched the Dwarf Galaxy Survey with Amateur Telescopes (DGSAT) project to use the ability of small telescopes for finding low surface brightness galaxies. In this talk, I will briefly highlight the importance of finding dwarf satellite galaxies and will present the first results of the DGSAT project (http://arxiv.org/abs/1511.04446) which is the discovery of 11 low surface brightness systems in the field of 6 nearby spiral galaxies.

این سمینار در روز شنبه ۱۲ دی ماه ۱۳۹۴، ساعت ۱۱ در اتاق ۵۱۷ در طبقهٔ پنجم دانشکدهٔ فیزیک برگزار خواهد شد.