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(New) Wavelength Calibration Atlas

RILD Wavelength Atlas

The table below lists the updated exposure times for the new CCD. Note that they are similar to those used with the previous chip. To be used for line identification and order selection filters. The plot present the full extension of the CCD (i.e. the 4000 pixels). Note though that for grisms 1 and 7, not the full extension of the CCD is usefull and well calibrated.

Grism

He

Ar

Atlas

Grism #1

2

1

gif ps pdf (updated - Jul03)

Grism #2

2

2

gif ps pdf (updated - Jul03)

Grism #3

2

2

gif ps pdf (updated - Jul03)

Grism #4

5

1

gif ps pdf (updated - Jul03)

Grism #5 (with filter BG38#643)

3

300

gif ps pdf (updated - Jul03)

Grism #6

6

2

gif ps pdf (updated - Jul03)

Grism #7

2

1

gif ps pdf (updated - Jul03)

 

 

REMD Wavelength Atlas

The HeAr spectra corresponding to the "standard central wavelengths" (defined in our calibration plan) are listed below. Of course, for scientific observations, any central wavelength can be selected.

Table: REMD-spec Wavelength Atlas

Grating

Exposure Time (s)
He + Ar

Central Wavelength
(nm)

Atlas

#6

15 + 300

490

ps gif

0 + 300

550

ps gif

1 + 300

600

ps gif

1 + 300

610

ps gif

6 + 15

670

ps gif

6 + 10

700

ps gif

6 + 10

730

ps gif

0 + 3*

790

ps gif

0 + 7*

850

ps gif

0 + 5*

910

ps gif

0 + 5*

950

ps gif

#7

10 + 300

450

ps gif

10 + 150

500

ps gif

1 + 15

600

ps gif

1 + 60

630

ps gif

9 + 2*

750

ps gif

9 + 2*

760

ps gif

1 + 2*

850

ps gif

0 + 4

890

not available yet

#8

12 + 60

520

ps gif

12 + 60

575

ps gif

12 + 60

620

ps gif

8 + 2*

720

ps gif

8 + 2*

825

ps gif

#13

15 + 8

550

ps gif

15 + 8

650

ps gif

3 + 2

700

ps gif

3 + 2*

750

ps gif

3 + 2*

850

ps gif


*Note: with Filter OG530#645

 

Echelle Wavelength Atlas

The following table list the recommended exposure times for a 2x2 bin CCD and links the "finding charts" for the orders and reference lines.

An atlas (in PDF format) is now provided for line identification and wavelength calibration solution. All orders of the spectra have now line identification. The atlas also contains Hints & Tips for the reduction (because of the particular problem of the CCD gap).

 

Table: Echelle wavelength calibrations

Grating

Cross Dispersor Grism

Exp.Time [sec],
Th lamp alone, Ar is included

Atlas

#9

Grs#3

600

pdf (updated - Oct04)

Grs#4

180

pdf (updated - Oct04)

#10

Grs#3

1200

pdf (updated - Oct04)

Grs#4

600

pdf (updated - Oct04)

Grs#5

600

pdf (updated - Oct04)

Grs#6

150

pdf (updated - Oct04)

#14

Grs#3

900

pdf (updated - Oct04)

Grs#4

900

pdf (new - Mar04)

Grs#5

900
pdf (new - Mar04)

Grs#6

900

pdf (updated - Oct04)

 

BLMD Wavelength Atlas

The HeAr and ThAr spectra corresponding to the "standard central wavelengths" (defined in our calibration plan) are listed below. Of course, for scientific observations, any central wavelength can be selected. Note that for ThAr spectra, only one lamp (Th) is used, which already contains Ar.

Table: BLMD Wavelength Atlas

Grating

Exposure Time (s)
He + Ar

Exposure Time (s)
Th + Ar

Central Wavelength
(nm)

Atlas

#3

90

360

gif ps

90

400

gif ps

90

440

gif ps

90

480

gif ps

#4

10 + 180

420

gif ps

#5

10 + 180

420

gif ps

#11

1200

350

gif ps

600

365

gif ps

600

380

gif ps

600

395

gif ps

600

410

gif ps

600

425

gif ps

600

440

gif ps

600

455

gif ps

600

470

gif ps

600

485

gif ps

600

500

gif ps

#12

2 + 600

600

350

HeAr: gif ps ; ThAr: gif ps

15 + 300

600

425

HeAr: gif ps ; ThAr: gif ps

4 + 90

600

500

HeAr: gif ps ; ThAr: gif ps

 

 

11 Dec. 2006 (Ela)
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