Natures of a clump-origin bulge: a pseudo-bulge like but old metal-rich bulge
نویسندگان
چکیده
منابع مشابه
Galactic Bulge Microlensing Events with Clump Giants as Sources
We present preliminary results of the analysis of 5 years of MACHO data on the Galactic bulge microlensing events with clump giants as sources. In particular, we discuss: 1) the selection of 'giant' events, 2) distribution of impact parameters, 3) distribution of event durations, 4) the concentration of long duration events in MACHO field 104 centered on (l, b) = (3. • 1, −3. • 0). We report th...
متن کاملBulge Formation
The currently discussed theories of bulge formation are reviewed, including the pri-mordial scenario, where bulges form rapidly and then accrete disks, the secular scenario, where bulges are formed by dynamical evolution of disks through bars and galaxy interactions , and some combinations of both, where formation of bulges and disks are more continuous and interleaved. The various scenarios ma...
متن کاملVaginal Bulge
PATIENT PRESENTATION A 61-year-old female presented to the emergency department complaining of constipation and vaginal bulge with valsalva 89 days after a robotic-assisted hysterectomy. The patient had intercourse three days prior to presentation and experienced postcoital abdominal discomfort with vaginal bleeding. She denied any other trauma. She had no other complaints and denies fevers, ch...
متن کاملThe Galactic bulge: a review
The Milky Way is the only galaxy for which we can resolve individual stars at all evolutionary phases, from the Galactic center to the outskirt. The last decade, thanks to the advent of near IR detectors and 8 meter class telescopes, has seen a great progress in the understanding of the Milky Way central region: the bulge. Here we review the most recent results regarding the bulge structure, ag...
متن کاملThe Galactic Bulge
The Galactic bulge is the least studied component of our Galaxy. Yet, its formation and evolution are key to understand the formation of the Galaxy itself. Studies on the Galactic bulge have increased significantly in the last years, but still there are many points of controversy. This volume contains several contributions from experts in different aspects of the bulge. Issues discussed include...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2012
ISSN: 0035-8711
DOI: 10.1111/j.1365-2966.2011.20338.x