Hunting for Planets with CoRoT - Revision history

Rebull at 18:02, 13 December 2011

2011-12-13T18:02:18Z

Rebull: /* CoRoT Data */

2010-08-13T17:45:05Z

CoRoT Data

Rebull: /* CoRoT Data */

2010-08-13T17:44:06Z

CoRoT Data

Rebull at 17:42, 13 August 2010

2010-08-13T17:42:43Z

Rebull: /* CoRoT Data */

2010-08-12T05:44:51Z

CoRoT Data

Rebull: /* Transit Fitting */

2010-08-12T05:43:17Z

Transit Fitting

Rebull at 05:42, 12 August 2010

2010-08-12T05:42:59Z

Rebull at 05:41, 12 August 2010

2010-08-12T05:41:15Z

Rebull at 05:29, 12 August 2010

2010-08-12T05:29:42Z

Rebull: /* The Goals */

2010-08-12T05:26:39Z

The Goals

@@ Line 1: / Line 1: @@
-''Based on materials originally developed by Stephen Kane (NStED/IPAC) for the [http://nexsci.caltech.edu/workshop/2010/ 2010 Sagan Exoplanet Workshop]. This group project was entitled "Hunting for Planets with CoRoT."''
+''Based on materials originally developed by Stephen Kane (NExScI/IPAC) for the [http://nexsci.caltech.edu/workshop/2010/ 2010 Sagan Exoplanet Workshop]. This group project was entitled "Hunting for Planets with CoRoT."''
 =Introduction=
@@ Line 14: / Line 14: @@
 ==The Method==
-The NASA Star and Exoplanet Database (NStED) serves raw data from the CoRoT mission.  You will become familiar with the CoRoT data products and the noise properties. Investigate the light curves using various techniques, including the [[What is a periodogram? | NStED periodogram service]] which includes a Box-fitting Least Squares algorithm. You will identify periodic signatures within the light curves and determine their nature.  In particular, some of the light curves contain the signature of a transiting exoplanet. You will locate these and characterize them (Seager & Mallen-Ornelas, 2003, ApJ, 585, 1038).
+The NASA Exoplanet Archive serves raw data from the CoRoT mission.  You will become familiar with the CoRoT data products and the noise properties. Investigate the light curves using various techniques, including the [[What is a periodogram? | NASA Exoplanet Archive periodogram service]] which includes a Box-fitting Least Squares algorithm. You will identify periodic signatures within the light curves and determine their nature.  In particular, some of the light curves contain the signature of a transiting exoplanet. You will locate these and characterize them (Seager & Mallen-Ornelas, 2003, ApJ, 585, 1038).
 ==The Goals==
@@ Line 29: / Line 29: @@
 ==CoRoT Data==
-There are 52 lightcurves which I've picked out of the CoRoT dataset, and you can get to them via the NStED portal. The ids for these objects are [[media:corotobjlist.txt |here]]. The main task of this project is to detect and characterize as well as possible any signatures due to an exoplanet.
+There are 52 lightcurves which I've picked out of the CoRoT dataset, and you can get to them via the NASA Exoplanet Archive portal. The ids for these objects are [[media:corotobjlist.txt |here]]. The main task of this project is to detect and characterize as well as possible any signatures due to an exoplanet.
-You can access the NStED CoRoT service [http://nsted.ipac.caltech.edu/applications/ETSS/CoRoT_exo_index.html here]. I encourage you to take a look at this site and become familiar with how to download CoRoT data.  Start with the list of ids [[media:corotobjlist.txt |here]] (because these are the ones I hand-picked for this project), but it's good to become familiar with the download process so that you can extract more data as necessary. Also see [[Accessing Kepler and CoRoT data]] for more information.
+You can access the NASA Exoplanet Archive CoRoT service [http://exoplanetarchive.ipac.caltech.edu/applications/ETSS/CoRoT_exo_index.html here]. I encourage you to take a look at this site and become familiar with how to download CoRoT data.  Start with the list of ids [[media:corotobjlist.txt |here]] (because these are the ones I hand-picked for this project), but it's good to become familiar with the download process so that you can extract more data as necessary. Also see [[Accessing Kepler and CoRoT data]] for more information.
-The default format for CoRoT data is FITS. These can be directly uploaded into the [[What is a periodogram? | NStED Periodogram Service]]. The periodogram service provides output of phased lightcurves in ascii text format.
+The default format for CoRoT data is FITS. These can be directly uploaded into the [[What is a periodogram? | NASA Exoplanet Archive Periodogram Service]]. The periodogram service provides output of phased lightcurves in ascii text format.
 There are many useful FITS viewers which can be used to look at the FITS files directly. A good free viewer is [http://heasarc.gsfc.nasa.gov/lheasoft/ftools/fv/ Fv: The Interactive FITS File Editor]. Another one is [http://hea-www.harvard.edu/RD/ds9/ ds9].

@@ Line 29: / Line 29: @@
 ==CoRoT Data==
-There are 52 lightcurves which have been extracted from the CoRoT portal via NStED. The ids for these objects are [[media:corotobjlist.txt |here]]. The main task of this project is to detect and characterize as well as possible any signatures due to an exoplanet.
+There are 52 lightcurves which I've picked out of the CoRoT dataset, and you can get to them via the NStED portal. The ids for these objects are [[media:corotobjlist.txt |here]]. The main task of this project is to detect and characterize as well as possible any signatures due to an exoplanet.
 You can access the NStED CoRoT service [http://nsted.ipac.caltech.edu/applications/ETSS/CoRoT_exo_index.html here]. I encourage you to take a look at this site and become familiar with how to download CoRoT data.  Start with the list of ids [[media:corotobjlist.txt |here]] (because these are the ones I hand-picked for this project), but it's good to become familiar with the download process so that you can extract more data as necessary. Also see [[Accessing Kepler and CoRoT data]] for more information.

@@ Line 31: / Line 31: @@
 There are 52 lightcurves which have been extracted from the CoRoT portal via NStED. The ids for these objects are [[media:corotobjlist.txt |here]]. The main task of this project is to detect and characterize as well as possible any signatures due to an exoplanet.
-You can access the NStED CoRoT service [http://nsted.ipac.caltech.edu/applications/ETSS/CoRoT_exo_index.html here]. I encourage you to take a look at this site and become familiar with how to download CoRoT data so that you can extract more data as necessary. Also see [[Accessing Kepler and CoRoT data]] for more information.
+You can access the NStED CoRoT service [http://nsted.ipac.caltech.edu/applications/ETSS/CoRoT_exo_index.html here]. I encourage you to take a look at this site and become familiar with how to download CoRoT data.  Start with the list of ids [[media:corotobjlist.txt |here]] (because these are the ones I hand-picked for this project), but it's good to become familiar with the download process so that you can extract more data as necessary. Also see [[Accessing Kepler and CoRoT data]] for more information.
 The default format for CoRoT data is FITS. These can be directly uploaded into the [[What is a periodogram? | NStED Periodogram Service]]. The periodogram service provides output of phased lightcurves in ascii text format.

@@ Line 29: / Line 29: @@
 ==CoRoT Data==
-There are 52 lightcurves which have been extracted from the CoRoT portal via NStED. The ids for these objects are "here". The main task of this project is to detect and characterize as well as possible any signatures due to an exoplanet.
+There are 52 lightcurves which have been extracted from the CoRoT portal via NStED. The ids for these objects are [[media:corotobjlist.txt |here]]. The main task of this project is to detect and characterize as well as possible any signatures due to an exoplanet.
 You can access the NStED CoRoT service [http://nsted.ipac.caltech.edu/applications/ETSS/CoRoT_exo_index.html here]. I encourage you to take a look at this site and become familiar with how to download CoRoT data so that you can extract more data as necessary. Also see [[Accessing Kepler and CoRoT data]] for more information.

@@ Line 35: / Line 35: @@
 The default format for CoRoT data is FITS. These can be directly uploaded into the [[What is a periodogram? | NStED Periodogram Service]]. The periodogram service provides output of phased lightcurves in ascii text format.
-There are many useful FITS viewers which can be used to look at the FITS files directly. A good free viewer is Fv: The Interactive FITS File Editor. Another one is ds9.
+There are many useful FITS viewers which can be used to look at the FITS files directly. A good free viewer is [http://heasarc.gsfc.nasa.gov/lheasoft/ftools/fv/ Fv: The Interactive FITS File Editor]. Another one is [http://hea-www.harvard.edu/RD/ds9/ ds9].
 ==Transit Fitting==

@@ Line 39: / Line 39: @@
 ==Transit Fitting==
-There are several different approaches you might take to characterizing transit light curves. A good place to start is to read the papers by Mandel & Agol (2002)) and Seager & Mallen-Ornelas (2003).
+There are several different approaches you might take to characterizing transit light curves. A good place to start is to read the papers by Mandel & Agol (2002) and Seager & Mallen-Ornelas (2003).
 [[media:KvB_Unique_Solution.xls|Kaspar von Braun has created an excel worksheet]] which utilizes the equations of the Seager & Mallen-Ornelas (2003) paper.
 There is also the Transit Analysis Package Software by J. Z. Gazak (U. of Hawaii). Note that IDL is required to run this software. ( http://www.ifa.hawaii.edu/users/zgazak/TAP/ )

← Older revision		Revision as of 05:41, 12 August 2010
Line 1:		Line 1:
−	''Based on materials originally developed by Stephen Kane (~~NStED~~/IPAC) for the [http://nexsci.caltech.edu/workshop/2010/ 2010 Sagan Exoplanet Workshop]. This group project was entitled "Hunting for Planets with CoRoT."''	+	''Based on materials originally developed by Stephen Kane (NExScI/IPAC/Caltech) for the [http://nexsci.caltech.edu/workshop/2010/ 2010 Sagan Exoplanet Workshop]. This group project was entitled "Hunting for Planets with CoRoT."''

	=Introduction=		=Introduction=

← Older revision		Revision as of 05:29, 12 August 2010
Line 24:		Line 24:
	*How many transits are expected from a given survey? How many did we actually detect?		*How many transits are expected from a given survey? How many did we actually detect?
	*What can we learn from transit light curves about the characteristics of the planet?		*What can we learn from transit light curves about the characteristics of the planet?
		+
		+	=The Project=
		+
		+	==CoRoT Data==
		+
		+	There are 52 lightcurves which have been extracted from the CoRoT portal via NStED. The ids for these objects are "here". The main task of this project is to detect and characterize as well as possible any signatures due to an exoplanet.
		+
		+	You can access the NStED CoRoT service [http://nsted.ipac.caltech.edu/applications/ETSS/CoRoT_exo_index.html here]. I encourage you to take a look at this site and become familiar with how to download CoRoT data so that you can extract more data as necessary. Also see [[Accessing Kepler and CoRoT data]] for more information.
		+
		+	The default format for CoRoT data is FITS. These can be directly uploaded into the [[What is a periodogram? \| NStED Periodogram Service]]. The periodogram service provides output of phased lightcurves in ascii text format.
		+
		+	There are many useful FITS viewers which can be used to look at the FITS files directly. A good free viewer is Fv: The Interactive FITS File Editor. Another one is ds9.
		+
		+	Transit Fitting:
		+
		+	There are several different approaches you might take to characterizing transit light curves. A good place to start is to read the papers by Mandel & Agol (2002)) and Seager & Mallen-Ornelas (2003).
		+
		+	Kaspar von Braun has created an excel worksheet which utilizes the equations of the Seager & Mallen-Ornelas (2003) paper.
		+
		+	There is also the Transit Analysis Package Software by J. Z. Gazak (U. of Hawaii). Note that IDL is required to run this software. IDL is installed on the group machines.

@@ Line 22: / Line 22: @@
 *What is the expected false-alarm rate vs the observed false-alarm rate?
 *What kind of features manifest as false-alarms?
-*How many transits are expected from a given survey? How many did we
+*How many transits are expected from a given survey? How many did we actually detect?
-actually detect?
+*What can we learn from transit light curves about the characteristics of the planet?