Presentation is loading. Please wait.

Presentation is loading. Please wait.

LAS & GCS SV2 reports Nicolas Lodieu

Similar presentations


Presentation on theme: "LAS & GCS SV2 reports Nicolas Lodieu"— Presentation transcript:

1 LAS & GCS SV2 reports Nicolas Lodieu
“UKIDSS SV meeting”, Edinburgh, 15 December 2005

2 LAS report

3 Photometry of known L/T dwarfs

4 LAS diagrams (1) No constraint on the Class
WFCAM RA=10h46 dec=04°24' No constraint on the Class Separation Stars & Galaxies

5 LAS diagrams (2) (J-H,Y-J) diagram (J-K,Y-J) diagram

6 LAS vs SDSS (J-K,z-J) diagram (J-K,z-J) diagram
WFCAM RA=10h46 dec=04°24' WFCAM RA=09h40 dec=45° (J-K,z-J) diagram (J-K,z-J) diagram

7 Finding charts

8 GCS report

9 IC4665: completeness limits

10 IC4665: errors on the magnitudes
Y Z 0.1 Y=19.0 0.1 Z=19.0 J H 0.1 J=18.5 0.1 H=18.0 K J zoom 0.1 K=17.0

11 IC4665: CMD (1) (Y-J,Y) CMD from SV1

12 IC4665: CMD (2) (Y-J,Y) CMD from SV2

13 IC4665: Finding charts

14 Coma Ber: (Y-J,Y) CMD

15 Coma Ber: Finding charts

16 Upper Sco: (Z-J,Z) CMD

17 IC4665: colour-colour diagram

18 Conclusions 1) Pipeline 2) Suggestions for WSA
Main concern: photometry in LAS and GCS 1) Pipeline seems to detect objects with nothing at their nominal positions 2) Photometry seems unreliable when two stars are close to each other 2) Suggestions for WSA 1) Coordinates in sexagesimal format when an image is output (currently only coordinates in degrees are output) 2) Possibility to input a list of objects to get their UKIDSS photometry


Download ppt "LAS & GCS SV2 reports Nicolas Lodieu"

Similar presentations


Ads by Google