Transcript KEGS - The Kepler Extra

KEGS (Kepler Extra-Galactic Survey)
Brad E. Tucker
The KEGS Core Team – The KEGGERS
Rob Olling
Ed Shaya
Peter Garnavich
Armin Rest
Dan Kasen
Brad E. Tucker
Richard Mushostsky
Brad Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Kepler
Transiting planets around bright
stars
105 sq. degree field in Cygnus
~100K targets ( ~3k GO)
1 min + 30 min cadences
Only selected pixels downloaded
Monitored 500 galaxies
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Supernova with Kepler – The Good
30 Minute light-curve
Continuous monitoring
Pre-Explosion
4000 Data points per SN!
Photometry ~50 - 100 ppm
Olling+ (Nature, in press)
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Supernova with Kepler – The Bad
~4” pixels
Data downloaded 3 months late => SN
already happened
Must pre-select which galaxies to
monitor/download => Need to
predict the future
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Supernova with Kepler – The Ugly
Systematic Nightmare!
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
SN with Kepler
1.25
1.20
6 SN from 2010 - 2012
1.15
3 Ia’s (Olling+, Nature, in press)
1.10
2 II-P (Tucker+, Nature, in prep)
1 IIn/Ia-csm (Garnavich+, in
prep)
1.05
1.00
0.95
1250
Brad E. Tucker
1300
1350
Hot-Wiring the Transient Universe IV
1400
1450
12 May 2015
1500
Type Ia SN with Kepler
Olling+ (Nature, in press)
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Type Ia Supernova Progenitors
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Detecting the Donor Star
The blue object is the donor
star, with the yellow shock
wave and front
The donor star interferes
with the ejecta from the
explosion
After ~3 days the eject fills
the hole creating by the
donor star (b)
Kasen (2010)
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Signs of the Donor Star
Most of the interaction is in the
ultraviolet
t < ~5 days in B band for a Red
Giant shows a significant
bump
Optical bands only suffer a
slight modification to their
light curve rise time
Kasen (2010)
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Limits on Progenitors on Ia Progenitors
Olling+ (Nature, in press)
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Kepler Cosmology
Olling+ (Nature, in press)
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Core-Collapse SN
Tucker+ (Nature, in prep)
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Core-Collapse SN
Tucker+ (Nature, in prep)
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Core-Collapse SN
Garnavich+ ( in prep)
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
K2 Fields
Kepler
1
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Campaign 4
~3000 Galaxies
7 February – 24 April 2015
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Campaign 5
2800 Galaxies
26 April – 11 July 2015
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Fast and Faint
KEGS
Image Credit :
Mansi Kasliwal
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
Active Galactic Nuclei
~3% of galaxies low level
AGN
Sensitivity ~0.01%
Aiming to find 300 – 500 new
AGN
QSO’s Too
Mushotzky+11
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015
KEGS Plan + Goals
2 – 3 Fields per year (Galactic Cap Fields), 3-5K galaxies per field
3 – 10 SN per field, SN Shock break-out + subtle features
Fast, faint transients
AGN, QSO’s
Improving cosmological samples
Need Ground Based Follow-up to type objects
Talk to me if you’re thirsty for data and want some KEGS
Brad E. Tucker
Hot-Wiring the Transient Universe IV
12 May 2015