Posts in the past four weeks
Saturday
Mar 30 2013
22:10 UTC
In today's astrobite, we continue our overview of the papers from the Planck 2013 release. This time, we review papers XVII and XXIII, which discuss weak gravitational lensing of the Cosmic Microwave Background, and the isotropy of the Universe at the time this background radiation was emitted.
Posted by astrobites
Tuesday
Mar 26 2013
09:43 UTC
Some colleagues have suggested that my posting on Planck Day was overly frivolous, given the huge importance of what Planck has achieved. (Nicely written up by Andrew Jaffe.) Other colleagues have suggested that Planck Day was bad press, as it was such a huge public non-event, with a big fuss about mild parameter adjustment. I
Posted by The e-Astronomer
Saturday
Mar 23 2013
20:23 UTC
The primordial seeds of the Universe, the Cosmic Microwave Background, have been measured by the Planck satellite with unprecedented precision. In this post, we summarize some of their results on cosmological parameters and primordial non-gaussianity.
Posted by astrobites
Friday
Mar 22 2013
17:04 UTC
Yesterday's release of the Planck papers and data wasn't just aimed at the scientific community, of course. We wanted to let the rest of the world know about our results. The main press conference was at ESA HQ in Paris, and there was a smaller event here in London run by the UKSA, which I participated in as part of a panel of eight Planck scientists. The reporters tried to keep us honest, asking us to keep simplifying our explanations so that they — and their readers — could underst
Posted by Andrew Jaffe: Leaves on the Line
Friday
Mar 22 2013
15:52 UTC
If you're the kind of person who reads this blog, then you won't have missed yesterday's announcement of the first Planck cosmology results. The most important is our picture of the cosmic microwave background itself:But it takes a lot of work to go from the data coming off the Planck satellite to this picture. First, we have to make nine different maps, one at each of the frequencies in which Planck observes, from 30 GHz (with a wavelength of 1 cm) up to 850 GHz (0. 350 mm) — note that the
Posted by Andrew Jaffe: Leaves on the Line
Friday
Mar 22 2013
03:30 UTC
Planck CMBCopyright: ESA and the Planck Collaboration Acquired by ESA's Planck space telescope, the most detailed map ever created of the cosmic microwave background the relic radiation from the Big Bang was released today revealing the existence of features that challenge the foundations of our current understanding of the Universe. The image is based on the initial 15. 5 months of data from Planck and is the mission's first all-sky picture of the oldest light in our Unive
Posted by astronomy cmarchesin
Tuesday
Mar 05 2013
22:12 UTC
... Tags: CMB, Planck
Posted by Andrew Jaffe: Leaves on the Line