Back to: FrontPage

PI: Werk

Goal: We seek NaI spectra of BHB stars

Setup (for HIRESb):

Number

Decker

ECHELLE

XDANGL

Binning

1

C1

0.

??

2x1

Observing Procedure/Exposure Times:

  1. Go to coordinates of the star and acquire. Guide on source.
  2. See finders here: sdssfindingcharts_bhb.pdf

Necessary Calibrations: We will need arcs, flats.

Conditions: This project can be done in poorer conditions. ALSO, it is pretty good for twilight!

Target List: This is a list of targets visible in April from the HST proposal.

Exposure Times: Computed with HIRES ETC to achieve S/N of 25 - 30 over NaI (5891/5897).

Target

RA

DEC

vmag

Z_kpc

finder

status

BHB1_SDSS-J152750.06+402729.0

15:27:50.0600

+40:27:29.06

14.1

3.1

pdf_finder

2 * 420s NEEDED

BHB2_2MASS-J15341124+5015564

15:34:11.2500

+50:15:56.40

14.5

4.2

pdf_finder

2 * 420s done. NaI seen.

BHB3_SDSS-J161151.93+494532.3

16:11:51.9460

+49:45:32.00

15.6

5.0

pdf_finder

2 x 420s done. NaI non-detected consider additional 2 * 900s

BHB4_SDSS-J132554.40+223250.1

13:25:54.4180

+22:32:49.97

15.2

6.3

pdf_finder

2 * 800s NEEDED

BHB5_SDSS-J145836.42+402644.8

14:58:36.4160

+40:26:44.92

16.1

7.8

pdf_finder

2 * 1200s NEEDED

BHB6_2MASS-J13411984+2823586

13:41:19.8500

+28:23:58.60

16.4

9.5

pdf_finder

2 * 1600s NEEDED

BHB7_SDSS-J145953.97+412851.1

14:59:53.9770

+41:28:51.19

17.1

13.3

pdf_finder

2 * 1800s NEEDED

BhBs (last edited 2015-05-11 19:10:08 by JessicaWerk)