WISE

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WISE mission

Post by Phill on 27th November 2009, 1:21 pm

WISE (Wide field Infrared Survey Explorer) was designed to identify stars closest to the Sun
and could pick up the glow of the coolest ‘failed’ stars, known as brown
dwarfs. These sub-stellar objects range between 13 to 90 Jupiter masses and
have been observed with ground-based telescopes since 1994. WISE might be able
to track down brown dwarfs in our neighbourhood, even those possibly closer
than the nearest known star Proxima Centauri, which is four light years away.
WISE’s first complete survey of solitary brown dwarfs might explain whether
these failed dim stars might account for orbital anomalies in the extreme outer
solar system or disturb the Oort cloud, a spherical cloud of cometary bodies at
one light year distance around our Sun.
interesting!!!




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WISE

Post by marasama on 1st December 2009, 2:47 pm

Can't wait 'til WISE find some more brown dwarfs and hopefully another Sol planet if it exists.

http://en.wikipedia.org/wiki/Wide-field_Infrared_Survey_Explorer

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Re: WISE

Post by philw1776 on 4th December 2009, 11:45 am

Interesting to see how many BDs exist in the solar neighborhood. Some estimates say the expected number of L and T stars is roughly equal to M stars. About a 50-50 chance they find a BD closer than Proxima Centauri.

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Re: WISE

Post by Lazarus on 9th December 2009, 6:03 pm

Apparently there are some delays launching WISE, caused by problems with launching a military satellite.

(maybe we should merge in this thread?)

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Re: WISE

Post by Sirius_Alpha on 9th December 2009, 10:06 pm

Lazarus wrote:(maybe we should merge in this thread?)
Sounds reasonable. Done.

What can WISE do for exoplanet studies? Detect rogue planemos?

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Re: WISE

Post by Sirius_Alpha on 14th December 2009, 9:34 am

About to launch.

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Re: WISE

Post by Sirius_Alpha on 14th December 2009, 10:31 am

Apparently a successful launch.

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WISE Initial Checkout Progressing Nicely

Post by philw1776 on 26th December 2009, 5:08 pm

WISE is checking out nicely and is about to pop its 'lens cap'. After the initial one month checkout, first pictures will be released about a month later. I'd guess late Feb 2010.

WISE site for news, etc.

http://wise.ssl.berkeley.edu/news.html

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Re: WISE

Post by ciceron on 7th January 2010, 7:29 am

WISE first ligth Smile
http://www.nasa.gov/mission_pages/WISE/multimedia/wise20100106.html

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Re: WISE

Post by Sirius_Alpha on 24th January 2010, 3:17 pm

WISE first light. Lots of red (cool) objects visible when zoomed in.
http://www.planetary.org/image/PIA12499.jpg

I'm guessing a lot of these are the hordes of red dwarfs that populate the galaxy.

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Re: WISE

Post by Lazarus on 25th January 2010, 5:20 pm

That red spot at the centre of that image is a near-Earth asteroid.
http://www.nasa.gov/mission_pages/WISE/multimedia/wise20100122.html

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Re: WISE

Post by Borislav on 14th June 2010, 4:16 pm

http://www.scientificamerican.com/blog/post.cfm?id=wise-satellite-already-spots-two-br-2010-05-27
http://ssc.spitzer.caltech.edu/warmmission/scheduling/approvedprograms/ddt/551.txt

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Re: WISE

Post by Borislav on 14th June 2010, 4:50 pm

In general, there is a non-zero probability that Lyra1 closer Proxima Centauri ...

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Re: WISE

Post by Sirius_Alpha on 23rd August 2011, 6:29 pm

WISE has found ~100 new brown dwarfs. Six are claimed to be Y-type, one is 9 Light Years away.

http://www.nasa.gov/mission_pages/WISE/news/wise20110823.html

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Re: WISE

Post by Lazarus on 23rd August 2011, 6:55 pm

Hmmmm... wonder what the distinction between T and Y actually looks like in terms of spectral features.

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Re: WISE

Post by Sirius_Alpha on 23rd August 2011, 8:39 pm

The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE)
http://arxiv.org/abs/1108.4677

The Discovery of Y Dwarfs Using Data from the Wide-field Infrared Survey Explorer (WISE)
http://arxiv.org/abs/1108.4678

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Re: WISE

Post by Lazarus on 27th March 2012, 2:01 pm

WISE J111838.70+312537.9 is a newly-discovered member of the nearby multiple star system Alula Australis:
A T8.5 Brown Dwarf Member of the Xi Ursae Majoris System

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Re: WISE

Post by Lazarus on 11th May 2012, 2:52 am

More Y-dwarfs...
Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function

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Re: WISE

Post by Lazarus on 11th June 2012, 2:10 pm

Brown dwarfs seem to be rarer than expected...
WISE Finds Few Brown Dwarfs Close to Home

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Re: WISE

Post by Sunchaser on 11th June 2012, 6:24 pm

I find that somewhat disappointing...

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Re: WISE

Post by PlutonianEmpire on 11th June 2012, 6:51 pm

Sunchaser wrote:I find that somewhat disappointing...
Look on the bright side: There's a smaller chance of a brown dwarf infiltrating the Solar system and messing things up as we all go around the Great Milky Way Merry-Go-Round. Very Happy

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Re: WISE

Post by jyril on 12th June 2012, 4:10 am

Not so surprising result, actually. If my memory serves, the detected number of young brown dwarfs in star clusters is much less than the number of stars?

BTW, this result of course does not exclude the possibility that there are rogue planets between the Sun and Alpha Centauri, masses up to several Jupiters.

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Re: WISE

Post by Stalker on 12th June 2012, 5:36 am

Or less maybe

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Re: WISE

Post by Lazarus on 4th July 2012, 2:16 pm

Confusion limited surveys: using WISE to quantify the rarity of warm dust around Kepler stars

One candidate dust disc around an A-type star (KIC 7345479).

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Re: WISE

Post by Galzi on 30th August 2012, 3:12 pm

Not related to exoplanets or brown dwarfs, but definitely worth mentioning:

http://www.nasa.gov/mission_pages/WISE/news/wise20120829.html

Bonanza of newfound supermassive black holes and extreme galaxies called hot DOGs, or dust-obscured galaxies.

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Re: WISE

Post by Sponsored content Today at 6:39 pm


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