Initial results from a laboratory emulation of weak gravitational lensing measurements

نویسندگان

  • S. Seshadri
  • C. Shapiro
  • T. Goodsall
  • J. Fucik
  • C. Hirata
چکیده

*S. Seshadri, C. Shapiro, T. Goodsall, J. Fucik, C. Hirata, J.D. Rhodes, B.T.P. Rowe, R.M. Smith Jet Propulsion Laboratory, California Institute of Technology, MS 300-315, 4800 Oak Grove Drive, Pasadena, CA California Institute of Technology, MC 11-17, 1200 East California Blvd, Pasadena, CA 91125 Department of Physics & Astronomy, University College London, Gower Street, London, WC1E 6BT, UK Contact information: *[email protected]; phone: (818)-354-8370; fax: (818)-393-0045

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Gravitational Shear, Flexion and Strong Lensing

We present a gravitational lensing analysis of the galaxy cluster Abell 1689, incorporating measurements of the weak shear, flexion, and strong lensing induced in background galaxies. This is the first time that a shapelet technique has been used to reconstruct the distribution of mass in this cluster, and the first time that a flexion signal has been measured using cluster members as lenses. F...

متن کامل

Galaxy Halo Masses from Weak Gravitational Lensing

In this review, I discuss the use of galaxy-galaxy weak lensing measurements to study the masses of dark matter halos in which galaxies reside. After summarizing how weak gravitational lensing measurements can be interpreted in terms of halo mass, I review measurements that were used to derive the relationship between optical galaxy mass tracers, such as stellar mass or luminosity, and dark mat...

متن کامل

The Cluster Mass Function from Weak Gravitational Lensing

We present the first measurement of the mass function of galaxy clusters based directly on cluster masses derived from observations of weak gravitational lensing. To investigate the degree of sample incompleteness resulting from the X-ray based selection of the target clusters, we use a sample of 50 clusters with weak lensing mass measurements to empirically determine the relation between lensi...

متن کامل

Digging into dark matter with weak gravitational lensing

Ordinary baryonic particles (such as protons and neutrons) account for only one-sixth of the total matter in the Universe. The remainder is a mysterious “dark matter” component, which does not interact via the electromagnetic force and thus neither emits nor reflects light. However, evidence is mounting for its gravitational influence. The past few years have seen particular progress in observa...

متن کامل

Constraints on the Long-range Properties of Gravity from Weak Gravitational Lensing

Weak gravitational lensing provides a means of testing the long-range properties of gravity. Current measurements are consistent with standard Newtonian gravity and inconsistent with substantial modifications on Mpc scales. The data allows long range gravity to deviate from a 1/r potential only on scales where standard cosmology would use normal gravity but be dominated by dark matter. Thus, ab...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013