منابع مشابه
The stars near the centre of supergiant shell LMC 4 : Further constraints on triggering scenarios ⋆
The huge supergiant shell (SGS) LMC4, next to the giant H II region 30Doradus the second most impressive feature of the Large Magellanic Cloud (LMC), has been the subject of many studies and was used to test various models of star forming mechanisms. In this paper we present a B,V photometry of the very centre of this SGS. The new data yield an age of 11(2) Myr and a B−V excess of 0.10(3) mag. ...
متن کاملResolving the Nature of the Lmc Microlensing Event Lmc-5
We present the results from an analysis of Hubble Space Telescope High Resolution Camera data for the Large Magellanic Cloud microlensing event MACHO-LMC-5. By determining the parallax and proper motion of this object we find that the lens is an M dwarf star at a distance of 578 −53pc with a proper motion of 21.39±0.04 mas/yr. Based on the kinematics and location of this star it more likely to ...
متن کاملMicrolensing towards LMC : a study of the LMC halo contribution
We carry on a new analysis of the sample of MACHO microlensing candidates towards the LMC. Our main purpose is to determine the lens population to which the events may belong. We give particular emphasis to the possibility of characterizing the Milky Way dark matter halo population with respect to the LMC one. Indeed, we show that only a fraction of the events have characteristics that match th...
متن کاملMicrolensing towards the Lmc
The nature and the location of the lenses discovered in the microlensing surveys done so far towards the LMC remain unclear. Motivated by these questions we computed the optical depth for the different intervening populations and the number of expected events for self-lensing, using a recently drawn coherent picture of the geometrical structure and dynamics of the LMC. By comparing the theoreti...
متن کاملCluster Formation in the Lmc
In this work we present preliminary results concerning the properties of about 50 clusters and associations located in a densely populated region at the Southern edge of the supershell LMC 4. The ages of the clusters and associations are derived. The cluster formation rate peaks at about 10-20 Myr ago corresponding to the age of the formation of LMC 4. Objects younger than 10 Myr are located cl...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1999
ISSN: 0074-1809
DOI: 10.1017/s0074180900118224