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Ark 564 (JNAME: J2242+297)

Link to Riken Public Page of Ark 564

Category: AGN
Subcategory: Sy1

(RA, Dec) = ( 340.66 , 29.73 ); (l, b) = ( 92.1 , -25.3 )

Last update of this page: Fri Oct 28 09:13:01 +0900 2016
The one-week-binned light curves in this page were created by rebinning the MAXI public one-day-light curves (available at by using the formula,
which is only appropriate if the following two conditions are fulfilled:
Condition 1. Raw data are background dominant;
Condition 2. Background rates are constant (at least, during the time span of rebinning, that is, one week).
To make one-week-binned light curves for scientific papers without assuming the two conditions, we need to go back to event files with effective exposure information, or light curves with effective exposure information.

1. One bin per week: Ark 564 (JNAME: J2242+297)

(only with statistically rich bins, each including at least four day-bins.)

J2242+297_weekbin_ge4days.jpg J2242+297_weekbin_ge4days_hires.jpg J2242+297_weekbin_ge4days_hires_410.jpg
J2242+297_weekbin_ge4days_hires_410nodate.jpg J2242+297_weekbin_ge4days.pdf


JPEG light curve

2. One bin per week: Ark 564 (JNAME: J2242+297)

(including statistically poor bins)

J2242+297_weekbin.jpg J2242+297_weekbin_hires.jpg J2242+297_weekbin.pdf


JPEG light curve

3. One bin per day: Ark 564 (JNAME: J2242+297)

J2242+297.jpg J2242+297_hires.jpg J2242+297_hires_410.jpg
J2242+297_hires_410nodate.jpg J2242+297.pdf


JPEG light curve

4. One bin per orbit: Ark 564 (JNAME: J2242+297)

J2242+297_orb.jpg J2242+297_orb_hires.jpg J2242+297_orb.pdf


JPEG light curve