RB Editor’s Selections: Planck Appetisers, CSI-style Imaging, Maths Education and Risk, and Hungry Black Holes

Sarah Kendrew Sarah Kendrew selects interesting and notable ResearchBlogging.org posts in the physical sciences, chemistry, engineering, computer science, geosciences and mathematics. She blogs about astronomy at One Small Step.

[cross-posted from ResearchBlogging.org News]

Exciting new science has a habit of getting published when I’m on holiday – so it was no surprise to come back from a refreshing week in the mountains to some awesome new stuff in the journals and on ResearchBlogging. Here are some picks from the physical sciences categories.

  • First Planck results: The Sunyaev-Zeldovich Effect. Scientist working on data from European cosmic microwave background mission Planck published 25 new papers to the Arxiv last Wednesday with a first batch of results from the satellite. It’s a lot to digest, and thankfully some of the papers are being discussed online to provide us with digested reads and comment. On The Eternal Universe, Joseph Smidt talks about Planck’s observations of galaxy clusters using the Sunyaev-Zeldovich effect; I agree that these results bode extremely well for the bulk of the science we can expect from Planck in 2013.
  • Computer-enhanced imaging with almost perfect resolution. We astronomers spend a lot of time figuring out how to extract information from noisy images, and I’m always curious about the clever methods scientists in other fields develop for this purpose. In All That Matters, Joerg Heber describes an interesting technique developed by Israeli optical scientists to reconstruct images to the sub-wavelength resolution level from imperfect images.
  • Does mathematical training increase our risk tolerance? The critical assessment of risk is one of the most important skills we can learn from our maths lessons at school. It’s a little counter-intuitive then to learn, via Evolving Economics, that maths education appears to change our innate perception of numbers, potentially leading to a higher tolerance to risk.
  • Black holes are not fed by colliding galaxies after all. The co-evolution of galaxies and their black holes throughout the history of the Universe is one of the hottest topics in astrophysics at the moment. On Basic Space, Kelly Oakes discusses newly published research challenging a popular theory behind the triggering of black hole activity. This paper has received quite a bit of attention on blogs, see also the discussion on Science and Reason.

I’ll be back next week with more selections. Thanks for the great posts!

Blogging holiday

Bit of a holiday, back in a few weeks. Meanwhile, enjoy the first all-sky map released from cosmic microwave background satellite Planck!

APOD: Cold dust, Hot image

Today’s Astronomy Picture of the Day is this stunning image of a section of the Galaxy as seen at far-infrared wavelengths. The high-resolution parts come from the recently launched Planck satellite, the rest from the older infrared satellite IRAS. The bright material shown in the image is very cold gas and dust, whose radiation peaks at these long infrared wavelengths.

Image: ESA, Planck HFI Consortium, IRAS

First light for Planck

First images from Planck, overlaid on an optical image of the galactic plane

The European Space Agency yesterday released first light images from its cosmic microwave background experiment, Planck. Planck was launched together with infrared observatory Herschel in May, and these first data show that the little satellite is in excellent working order.

[Read more...]

First light for Herschel

M51_final_color

Doesn’t it seem like yesterday, that exciting day when two new astronomy satellites were blasted into space? There was Herschel, at 3.5-m the largest telescope ever launched into space, and Planck, the new cosmic miscrowave background explorer. We cheered, drank some champagne and settled into the wait until the data started coming in. Well, that day has arrived. This week ESA and the participating institutes released an early first light image from PACS, the Photodetector and Array Camera and Spectrometer, on board Herschel, taken during the telescope’s commissioning phase.

A big congrats to the Herschel telescope and instrument teams!

Update 11/07/09: Watch a video of the Herschel/PACS team as they receive the beautiful picture of M51 from the telescope, here. Great stuff!

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