Ergodic Considerations in the Gravitational Potential of the Milky Way

which relies on high precision measurements of positions and velocities ... where α, β etc are free parameters. 2. for a given choice of free parame...

0 downloads 3 Views 303KB Size

Recommend Documents

Mar 23, 2006 - onic mass of the Galaxy. 582 high-velocity clouds (HVCs) are defined as the potential infalling, condensed clouds and the sample's spatial and ...

Nov 11, 2013 - Near-future data from ESA's Gaia mission will provide precise, full phase-space information for hundreds ... 120th St., New York, NY 027, USA.

May 26, 2014 - gested that the spherically-averaged density profiles of dark matter halos follow a universal profile across a large dynamic range in .... “best-fit” parameters by comparing the properties of observed Sgr stars to their simulated d

Apr 13, 2018 - tentials without free parameters, and several “adjustable” potential ..... Tld since release in 1 Sagittarius dSph orbital period T0, or a time tld ...

Apr 9, 2012 - ASP Conference Series, Vol. **Volume Number**. **Author** .... minihaloes at z > 8.5 (Salvadori & Ferrara 2009), some of which might host first stars. The unusual composition of two stars ... The recently discov- ered C-enhanced DLA is

Feb 10, 2015 - with high quality spectroscopic data seem to support a dual Galactic disk, with a clear separation into a thin and a thick component. Much confusion .... caused by a real cloud (either HI or CO) moving inside an arm, and not by whateve

ABSTRACT. We review observational evidence bearing on the formation of a prototypical large spiral galaxy, the Milky Way. New ground- ... over a volume that presently extends to twice the distance of the Magellanic Clouds. Key Words : astronomy ... I

Jan 4, 2018 - Abel, T., Wise, J. H., & Bryan, G. L.: Astrophys. J. Lett. 659, L87 (2007) ... Chevance, M., Madden, S. C., Lebouteiller, V., et al.: As- tron. Astrophys.

7Li enhancement from a lower primordial value to a higher present one. ... results at [Fe/H] > −0.5 dex are nearly the same, owing to the consumption of 7Li by ...

Jan 4, 2018 - 07 04. -10 27 N/A. 1.3. 5. 314. 33. -. 733. IC 2944. 11 38. -63 22 Collinder 249. 2.3. 6. 1 866. 5. 34. 690. M 8. 18 03. -24 23 NCC 6530, 6523. 1.3. 7. 1 374 ... +23 05 NGC 6823. 1.9. 13. 707. 53. 1. 1072. NGC 7635. 23 20. +61 12 [BDS20

Jun 22, 2011 - In order to conduct convergence studies, we also simulated the halo at ...... work were run on the IBM pSeries Power6 at the Rechen- zentrum ...

THE FORMATION OF THE MILKY WAY DISK. Cristina Chiappini. Department of Astronomy, Columbia University, Mail Code 5247,. Pupin Hall, 550 West 120th ...

Jun 30, 2009 - a dark matter particle with mass 100 GeV) nuclear recoil event rate of direct dectection experiments, but it will not change the likelihood ... get dragged into the plane of their host disk and deposit their dark matter in a structure,

Galaxy, estimates of the local escape velocity of stars, the constraints .... ZI found that the median mass of the Galaxy modeled as a point ...... gures/sec4.

May 26, 2017 - E-mail: [email protected] We will discuss some highlights concerning the chemical evolution of our Galaxy, the Milky Way. First we will describe the main ingredients necessary to build a model for the chemical evolution of the Milky

Oct 21, 2016 - (2014) argued that the very long, very thin infrared dark cloud “Nessie” lies directly in the .... METHODOLOGY. 2.1. Visual Search. To search for more bones, we looked for them around where they are expected to lie in l, b, v space

Jul 31, 2014 - Astronomers would love to leave the Milky Way, so that we could observe its spiral pattern face-on, as we do for other galaxies. But our Sun is so entrenched in the Milky. Way's plane that an “overhead view” of the Milky Way's stru

Nov 3, 2006 - Key words: gravitational lensing – Galaxy: structure – Galaxy: disc .... Ș y. 3. 1. 3. 5 x ȟ. Ȗp = 0.2. Ȗp = 0.2. Figure 1. Critical curves (left) and ...

discovery of a pervasive neutral Galactic halo gas. We discuss critically the major differences between the recent publications as well as the lim- itations of the ...

Jan 8, 2015 - We review most dynamical constraints on the gravitational field of spiral galaxies in general, and of the Milky Way in particular. Such constraints are of prime importance for determining the charateristics of the putative dark matter h

We present a study of dense gas emission in the Milky Way in order to serve as a basis for comparison with extragalactic results. This study combines new observations of HCN, CS, and CO in individual GMCs and in the Milky Way plane with published stu

Oct 16, 2018 - (Dated: October 18, 2018). We perform a ... the Standard Model, to primordial Black Holes [12, 13]) has been .... theory for each single morphology in our catalogue. For the sake of ... Huang compilation's ˜χ2 as reference in the sca

2. ABSTRACT. New large-scale CO surveys of the first and second Galactic quadrants and the nearby molecular cloud complexes in Orion and Taurus, obtained with the CfA 1.2 m telescope, have been combined with 31 other surveys obtained over the past tw

Jun 2, 2014 - Some features meet with reasonable or total agreement: the magnetic fields seem to ..... Under the assumption of a Faraday screen, [58] find that Bran/Breg,⊥ ≲ 2 in a relatively small field of view at the ..... One property that all