ar X iv : a st ro - p h / 04 09 17 5 v 1 7 S ep 2 00 4 Peculiar Velocity and Deaberration of the Sky

نویسندگان

  • D. Menzies
  • G. J. Mathews
چکیده

Recent studies have found the earth's peculiar velocity to be significant in microwave background based tests for compact cosmic topology, and modifications to these tests have been proposed. Tests of non-gaussianity, weak lensing analysis and new tests using improved CMB data will also be sensitive to peculiar velocity. We propose here to simplify matters by showing how to construct a deaberrated CMB map to which any test requiring a Hubble flow viewpoint can be applied without further complication. In a similar manner deaberration can also be applied to object surveys used for example in topological searches and matter distribution analysis. In particular we have produced a revised list of objects with z > 1.0 using the NASA/IPAC Extragalactic Database.

برای دانلود 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

ar X iv : a st ro - p h / 04 09 12 9 v 1 6 S ep 2 00 4 Distant source image motion due to gravitational field of the Galaxy stars

Gravitational field of stars of the Galaxy causes additional motions of images of extragalactic sources. For typical realization of stars this results in a small rotation of extragalactic reference frame in the direction of Galactic rotation. We estimate angular velocity of corresponding image motion and show that it is different in case of discrete and continuous matter distribution in the Gal...

متن کامل

ar X iv : a st ro - p h / 01 09 04 4 v 1 4 S ep 2 00 1 Follow - up observations from observatories based in Spain

We present a review of the follow-up observations carried out from observatories located in Spain; Calar-Alto, Izaña and Roque de Los Muchachos. It summarizes the observations carried out by our group for 27 GRBs occurred in the period 19992000, spanning from GRB990123 to GRB001007.

متن کامل

ar X iv : a st ro - p h / 04 09 20 3 v 1 8 S ep 2 00 4 Dynamic Tides and the Evolution of Stars in Close Binaries

In this talk, we review some recent advances in the theory of dynamic tides in close binaries. We particularly focus on the effects of resonances of dynamic tides with free oscillation modes and on the role of dynamic tides in the comparison of theoretically predicted and observationally inferred apsidalmotion rates.

متن کامل

ar X iv : a st ro - p h / 00 09 37 8 v 1 2 2 Se p 20 00 preprint VAND – TH – 00 – 7 , NUB

Directional clustering can be expected in cosmic ray observations due to purely statistical fluctuations for sources distributed randomly in the sky. We develop an analytic approach to estimate the probability of random cluster configurations, and use these results to study the strong potential of the HiRes, Auger, Telescope Array and EUSO/OWL/AirWatch facilities for deciding whether any observ...

متن کامل

ar X iv : a st ro - p h / 05 04 59 7 v 1 2 7 A pr 2 00 5 Supernovae : Explosions in the Cosmos

In this article, a broad perspective of supernovae, their classification and mechanism is given. Later, the astrophysical significance of supernovae is discussed in brief.

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

برای دانلود 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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004