Testing Wolf-Rayet enrichment in IC 10 with ALFOSC slit-stepping
P74-003 Cameron
Summary:
This program will use stepped NOT/ALFOSC longslit spectroscopy to map N/O abundances ratios across IC 10, the local group galaxy with the highest density of WR stars,
to search for the presence of local N/O-enhancements around WR stars in high- and low-density environments.
Calibrations
Internal flats, arcs and bias frames from alfosc-calibs
Instrument setup
- ALFOSC
- Slit_1.0 Horizontal
- Grism_#4
Observations
Long slit spectoscopy stepped across the field.
For each pointing there will be a separate script, see table below.
Observing Blocks
| date |
program, |
UT window, |
duration, |
instrument, |
comment |
| 10-10-2026 |
74-003, |
20:25-04:15, |
01:16, |
ALFOSC, |
Diffuse M24 1 |
| 11-10-2026 |
74-003, |
20:15-04:05, |
01:05, |
ALFOSC, |
Diffuse M24 2 |
| 14-10-2026 |
74-003, |
[EAT]-03:50, |
01:16, |
ALFOSC, |
Diffuse T5 1 |
| 15-10-2026 |
74-003, |
[EAT]-03:45, |
01:16, |
ALFOSC, |
Diffuse T5 2 |
| 16-10-2026 |
74-003, |
[EAT]-03:40, |
00:47, |
ALFOSC, |
Diffuse central |
OB instructions
OB1: Diffuse M24 1
| Target acquisition: 5.0866118, 59.29319806 (m_RP=12.0) |
| offset: x=0 , y=-32.922 ; integration: 660.0 s |
| offset: x=0 , y=-8.000 ; integration: 660.0 s |
| offset: x=0 , y=-3.000 ; integration: 660.0 s |
| offset: x=0 , y=-3.000 ; integration: 660.0 s |
| offset: x=0 , y=-3.000 ; integration: 660.0 s |
| offset: x=0 , y=-3.000 ; integration: 660.0 s |
OB2: Diffuse M24 2
| Target acquisition: 5.0866118, 59.29319806 (m_RP=12.0) |
| offset: x=0 , y=-55.922 ; integration: 660.0 s |
| offset: x=0 , y=-3.000 ; integration: 660.0 s |
| offset: x=0 , y=-3.000 ; integration: 660.0 s |
| offset: x=0 , y=-3.000 ; integration: 660.0 s |
| offset: x=0 , y=-8.000 ; integration: 660.0 s |
OB3: Diffuse T5 1
| Target acquisition: 5.0866118, 59.29319806 (m_RP=12.0) |
| offset: x=0 , y=5.743 ; integration: 660.0 s |
| offset: x=0 , y=5.000 ; integration: 660.0 s |
| offset: x=0 , y=3.000 ; integration: 660.0 s |
| offset: x=0 , y=3.000 ; integration: 660.0 s |
| offset: x=0 , y=3.000 ; integration: 660.0 s |
| offset: x=0 , y=3.000 ; integration: 660.0 s |
OB4: Diffuse T5 2
| Target acquisition: 5.0866118, 59.29319806 (m_RP=12.0) |
| offset: x=0 , y=25.743 ; integration: 660.0 s |
| offset: x=0 , y=3.000 ; integration: 660.0 s |
| offset: x=0 , y=3.000 ; integration: 660.0 s |
| offset: x=0 , y=3.000 ; integration: 660.0 s |
| offset: x=0 , y=3.000 ; integration: 660.0 s |
| offset: x=0 , y=8.000 ; integration: 660.0 s |
OB4: Diffuse central
| Target acquisition: 5.0866118, 59.29319806 (m_RP=12.0) |
| offset: x=0 , y=-10.000 ; integration: 1200.0 s |
| offset: x=0 , y=-12.000 ; integration: 1200.0 s |
Available scripts
Go to the directory
cd ~/scripts/73-003
execute the requested scripts.
Invalid Proposal |
