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***NASA latest Info on Tyche search! ***

 
humuhumunukuapuaa
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06/07/2011 01:21 PM
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***NASA latest Info on Tyche search! ***
New Article starts 6th paragraph down.

You may recall a previous thread where Dr. Amy Mainzer suggested Tyche might be a "room temperature" dwarf (Even though none had been found yet) .

First, here is a brief background from an older NASA article "Can WISE (telescope) find the mythical Tyche?"

"It is likely but not a foregone conclusion that WISE could confirm whether or not Tyche exists. Since WISE surveyed the whole sky once, then covered the entire sky again in two of its infrared bands six months later, WISE would see a change in the apparent position of a large planet body in the Oort cloud over the six-month period. The two bands used in the second sky coverage were designed to identify very small, cold stars (or brown dwarfs) -- which are much like planets larger than Jupiter, as Tyche is hypothesized to be.


Following its successful survey, WISE was put into hibernation in February 2011. Analysis of WISE data continues. A preliminary public release of the first 14 weeks of data is planned for April 2011, and the final release of the full survey is planned for March 2012.


So what have they been doing since then? Here is the answer.

May 31, 2011 NASA [link to www.jpl.nasa.gov]

"The WISE mission promises to find even more of these little stars, with its improved infrared all-sky maps. In fact, WISE will likely more than double the number of known brown dwarfs out to 25 light-years from our sun, and it may even find one that's closer to us than our closet known star, Proxima Centauri, which is about 4 light-years away. The WISE telescope wrapped up its all-sky survey and went into hibernation in Feb. 2011, but astronomers are just now beginning to sift through the data.

Mainzer and Cushing had plucked a few good brown dwarf candidates out of the WISE data. Their next step was to use the NASA Infrared Telescope Facility atop Mauna Kea in Hawaii to gather more information on the objects, and figure out if they are indeed brown dwarfs, and not something else, such as a distant galaxy masquerading as a nearby, cool star. That's what brought them to a quiet conference room late at night, when even the most owlish of the astronomers usually working in the building had gone home.

"You've got Guidedog," said Cushing, talking via speaker-phone to the NASA Infrared Telescope Facility telescope operator in Hawaii. Guidedog is the name of one of the computers that controls the camera on the telescope. The operator took control of the computer in order to focus the telescope.

Throughout the night, Mainzer and Cushing told the operator when they were ready to point the telescope at a different patch of sky, while controlling the specific settings from a software interface on their laptops. The laptop screen was projected onto a big screen in the conference room, where they could get a better view of the software.

One task involved placing their objects of interest into thin windows, or slits, which mask other nearby stars. Once the command was given to capture an image, an instrument on the Infrared Telescope Facility, called a spectrometer, broke apart the object's light into its basic components, much as a prism disperses sunlight into a rainbow. These data were then transformed into plots, called spectra, showing the various light intensities at each wavelength. The resulting peaks and dips revealed molecules making up the object, as well as its temperature.

"I think we bagged another T-dwarf," said Mainzer, referring to a classification system that organizes brown dwarfs according to their temperature. T-dwarfs are about 1,400 to 500 Kelvin (about 1,130 to 230 degrees Celsius). WISE will likely find even colder brown dwarfs, possibly even the elusive Y-dwarfs, which some theories say could be as cold as 200 Kelvin (minus 73 degrees Celsius). If such an object is revealed, it would be the coldest star-like body known."



One thing I'd like to point out to newbies on this topic is that scientists are starting to believe brown dwarfs and large planets may have some similar traits, and that at some point, the line can blur between the two.

Last Edited by humuhumunukuapuaa on 06/07/2011 02:10 PM
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Anonymous Coward
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06/07/2011 02:09 PM
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Re: ***NASA latest Info on Tyche search! ***
Dr. Amy Mainzer is one damn sexy nerd, I can never hear what she says when she speaks because of it !

It just makes my liquid hot magma swell inside !


drevil
humuhumunukuapuaa (OP)

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06/07/2011 02:21 PM
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Re: ***NASA latest Info on Tyche search! ***
Dr. Amy Mainzer is one damn sexy nerd, I can never hear what she says when she speaks because of it !

It just makes my liquid hot magma swell inside !


drevil
 Quoting: Anonymous Coward 1412369


They are really setting her up to be a hero among giants in the field.

Every presentation from her seems calculated to connect her with the future discovery of Tyche.

Videos of her, Tyche and a treasure map, her in a red sweater explaing a hidden discovery is right around the corner, her burning the midnight oil with colleagues, "bagging" more dwarfs.

I admit, she has an exciting job, but the build-up to the April 2012 release seems coordinated, kinda like Bush on the Lincoln, or Obama in the situation room.

To put this in perspective, NASA is split right down the middle on this. Dr. Amy and JPL believe there are colder and much closer binary stars that orbit our solar system....including Tyche. The other side of NASA seem predisposed to stating there is no such thing, and it is a "hoax." No wonder we are confused. (funding wars?)

Amy is talking about room temperature dwarfs as if they already discovered one, and the other part of NASA says no way no how.

Last Edited by humuhumunukuapuaa on 06/07/2011 02:22 PM
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humuhumunukuapuaa (OP)

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06/07/2011 02:37 PM
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Re: ***NASA latest Info on Tyche search! ***
Tyche is a theorized binary star to our sun. NASA JPL thinks it may be at "room temperature"....how they arrived at this without seeing it first with infra red is beyond me. I can almost guarantee Dr. Amy Mainzer will be the one to announce discovey of Tyche on or before April 2012.

What do you think?
Through honesty, we make peace.
chickenlittle

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06/07/2011 02:47 PM
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Re: ***NASA latest Info on Tyche search! ***
Tyche is a theorized binary star to our sun. NASA JPL thinks it may be at "room temperature"....how they arrived at this without seeing it first with infra red is beyond me. I can almost guarantee Dr. Amy Mainzer will be the one to announce discovey of Tyche on or before April 2012.

What do you think?
 Quoting: humuhumunukuapuaa


I think whatever it is will be here on or before April 2012.
humuhumunukuapuaa (OP)

User ID: 1417198
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06/07/2011 04:29 PM
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Re: ***NASA latest Info on Tyche search! ***
Tyche is a theorized binary star to our sun. NASA JPL thinks it may be at "room temperature"....how they arrived at this without seeing it first with infra red is beyond me. I can almost guarantee Dr. Amy Mainzer will be the one to announce discovey of Tyche on or before April 2012.

What do you think?
 Quoting: humuhumunukuapuaa


I think whatever it is will be here on or before April 2012.
 Quoting: chickenlittle


alien7

Last Edited by humuhumunukuapuaa on 06/07/2011 04:31 PM
Through honesty, we make peace.
BobE

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09/08/2011 05:59 AM
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Re: ***NASA latest Info on Tyche search! ***
Dr. Amy Mainzer is one damn sexy nerd, I can never hear what she says when she speaks because of it !

It just makes my liquid hot magma swell inside !


drevil
 Quoting: Anonymous Coward 1412369


They are really setting her up to be a hero among giants in the field.

Every presentation from her seems calculated to connect her with the future discovery of Tyche.

Videos of her, Tyche and a treasure map, her in a red sweater explaing a hidden discovery is right around the corner, her burning the midnight oil with colleagues, "bagging" more dwarfs.

I admit, she has an exciting job, but the build-up to the April 2012 release seems coordinated, kinda like Bush on the Lincoln, or Obama in the situation room.

To put this in perspective, NASA is split right down the middle on this. Dr. Amy and JPL believe there are colder and much closer binary stars that orbit our solar system....including Tyche. The other side of NASA seem predisposed to stating there is no such thing, and it is a "hoax." No wonder we are confused. (funding wars?)

Amy is talking about room temperature dwarfs as if they already discovered one, and the other part of NASA says no way no how.
 Quoting: humuhumunukuapuaa


Mrs. Man-zer just might be a shameless self promoting guerrilla marketer.yoda
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