| First Kepler Results - Secondary Transit of HAT-P-7 | |
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: First Kepler Results - Secondary Transit of HAT-P-7 2nd August 2009, 7:12 am | |
| Press Conference ScheduleAugust 6, Thursday2 p.m. - Kepler Mission News Conference - HQ (Public and Media Channels)
_________________ Caps Lock: Cruise control for 'Cool'!
Last edited by Sirius_Alpha on 25th July 2013, 9:14 pm; edited 1 time in total | |
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Lazarus dF star
Number of posts : 3337 Registration date : 2008-06-12
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 2nd August 2009, 2:05 pm | |
| Optimistic guess: they've found a hot Jupiter. | |
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 2nd August 2009, 4:58 pm | |
| At least TrES-2 b. But yeah, the first Kepler-discovered planet would be nice. _________________ Caps Lock: Cruise control for 'Cool'!
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Lazarus dF star
Number of posts : 3337 Registration date : 2008-06-12
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 2nd August 2009, 5:10 pm | |
| Heh. Forgot about that one. Glad I said "found" not "discovered"... | |
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: temp 4th August 2009, 9:23 am | |
| http://www.spaceref.com/news/viewpr.html?pid=28885 - Quote :
- Editor's's note: According to multiple sources, Kepler has not found anything "new". However it has successfully detected at least one previously discovered substellar object circling another star. In other words, this amazing little spacecraft works! In addition, new candidate exoplanets have also been discovered but await confirmation by other telescopes. The results of Kepler's observations will appear in an article in this week's edition of Science magazine.
_________________ Caps Lock: Cruise control for 'Cool'!
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Phill Meteor
Number of posts : 23 Location : Coastline where Einstein lived in 1933... Registration date : 2009-07-31
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 4th August 2009, 2:02 pm | |
| Looking forward to Thursday's press conference 18:00 GMT... even with Kepler telescope's larger field of view and better optics, 3 transits are needed to confirm an exo-planet. Any idea if the mission uses RV (Radial Velocity) follow-up by ground-based spectrographs to confirm detected exo-planets... It could speed up the science output? http://www.nasa.gov/mission_pages/kepler/news/L-14-press-conference.html | |
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 4th August 2009, 5:06 pm | |
| - Phill wrote:
- (Radial Velocity) follow-up by ground-based spectrographs to confirm detected exo-planets... It could speed up the science output?
Yes, RV follow-up is always used to measure the mass of transiting planet candidates. I know at least Keck devotes some time to Kepler candidates. Maybe HARPS-N? _________________ Caps Lock: Cruise control for 'Cool'!
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Phill Meteor
Number of posts : 23 Location : Coastline where Einstein lived in 1933... Registration date : 2009-07-31
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 6th August 2009, 2:24 pm | |
| Main news of the Press meeting was the confirmation of the capability to detect Earth-size planets and the fact that Kepler's detectors are working flawlessly... Dr Alan Boss showed an interesting graph of the already 352 exo-planet detected with graph-axes; Earth masses versus Orbital distance... Is this graph available online? | |
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 6th August 2009, 2:40 pm | |
| _________________ Caps Lock: Cruise control for 'Cool'!
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TheoA Planetary Embryo
Number of posts : 88 Registration date : 2009-03-07
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 6th August 2009, 10:45 pm | |
| That is a truly awesome light curve.
The hubble light curves seem so limited and information sparse by contrast.
I'm disappointed that the sensitivity is only 40 parts per million considering an earth like planet causes a dip of only 80 part per million.
Hopefully as more transits are racked up, phase folding the curves can wring out more sensitivity from the instrument.
Wonder what the SNR is at present.
Its a shame that spectroscopic information is not being retrieved. It obvious now that the telescope is receiving a ton of extra info we may not be able to access. | |
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 7th August 2009, 5:30 am | |
| The entire press conference is here on YouTube _________________ Caps Lock: Cruise control for 'Cool'!
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exoplanet Planetesimal
Number of posts : 124 Location : here Registration date : 2008-06-16
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 7th August 2009, 9:32 am | |
| Hi TheoA,
the light curve was obtained from just *10 days* of test observations as you can read in the press release:
"The find is based on a relatively short 10 days of test data collected before the official start of science operations. Kepler was launched March 6, 2009, from Cape Canaveral Air Force Station in Florida. The observation demonstrates the extremely high precision of the measurements made by the telescope, even before its calibration and data analysis software were finished."
and the processing pipeline is not yet optimized. I fully aggree with you on one thing: it is an awesome lightcurve !
Cheers | |
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Edasich dK star
Number of posts : 2296 Location : Tau Ceti g - Mid Latitudes Registration date : 2008-06-02
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 10th August 2009, 11:28 am | |
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 12th August 2009, 4:50 am | |
| Not to try and be a nut case or anything, but did anyone notice that the HAT-P-7 b light curve that's circulating around is at least half fake? Look at the position of the points before each primary transit. They're exactly the same _________________ Caps Lock: Cruise control for 'Cool'!
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tom Hydrogen Atom
Number of posts : 2 Registration date : 2009-08-07
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 12th August 2009, 12:42 pm | |
| The most common publishings of the light curve that I've seen don't have the last 3rd of the graph (after 1.3 days), it looks like someone has stitched the first part of the graph onto the end, to make the periodicity seem clearer. | |
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TheoA Planetary Embryo
Number of posts : 88 Registration date : 2009-03-07
| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 12th August 2009, 1:24 pm | |
| As long as the data points themselves are not 'made up' I don't think any representation or manipulation can be called 'fake' as long as clarifications are made. It is very definitely a real effect you are seeing. I wonder how many orbits are folded into that curve. Should be atleast four orbits worth of data if the full 10 days is included. | |
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Lazarus dF star
Number of posts : 3337 Registration date : 2008-06-12
| Subject: First Kepler Results - Secondary Transit of HAT-P-7 12th August 2009, 1:51 pm | |
| I've definitely seen before papers which have depicted repeat data to clearly show all points in the orbit. Folding to one period makes it less clear what's going on at the edges. Not too common a manipulation, but it has been done before. | |
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| Subject: Re: First Kepler Results - Secondary Transit of HAT-P-7 | |
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| First Kepler Results - Secondary Transit of HAT-P-7 | |
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