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Structures at the tip of the "giant dust hook" in Cen (seen at this level of details in visible range for the first time?), Alexandr Zaytsev
Structures at the tip of the "giant dust hook" in Cen (seen at this level of details in visible range for the first time?), Alexandr Zaytsev

Structures at the tip of the "giant dust hook" in Cen (seen at this level of details in visible range for the first time?)

Revision title: The original version of the image with full star suppression applied

Link: https://coalsack.online/chilescope/Cen_2023Q2/Cen_z6_T1_13x1200s_Ha_e1_stl_r_at.jpg
Getting plate-solving status, please wait...
Structures at the tip of the "giant dust hook" in Cen (seen at this level of details in visible range for the first time?), Alexandr Zaytsev
Structures at the tip of the "giant dust hook" in Cen (seen at this level of details in visible range for the first time?), Alexandr Zaytsev

Structures at the tip of the "giant dust hook" in Cen (seen at this level of details in visible range for the first time?)

Revision title: The original version of the image with full star suppression applied

Link: https://coalsack.online/chilescope/Cen_2023Q2/Cen_z6_T1_13x1200s_Ha_e1_stl_r_at.jpg

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Description

4h 20min of integral Ha exposure of the area at the tip of the "giant dust hook" structure sitting halfway between Alpha and Beta Cen on WSSA 12um survey [1] - captured remotely Telescope #1 (ASA-RC D = 1m f/6.8, FLI ProLine 16803) system of ChileScope observatory over 4 imaging sessions carried out on May 26, 27, 29, 30 of 2023.

[1] https://arxiv.org/abs/1312.0947


This is a continuation of work started under [2] using Chilescope T3 instrument:

[2] https://www.astrobin.com/6vb6nv/E/


Full resolution of images under revisions B and D are also available under [3] and [4] respectively:

[3] https://coalsack.online/chilescope/Cen_2023Q2/Cen_z6_T1_13x1200s_Ha_e1_stl2_nr_r_at.jpg

[4] https://coalsack.online/chilescope/Cen_2023Q2/Cen_z6_T1_13x1200s_Ha_e1_stl2_nr_r_i_at.jpg


There is a strong indication of some sort of loop structure in the "central spire" in this image that wasn't revealed before under [2] (crop, 50% scale, inverted - the full resolution is available under revision D):

image.png


The presence of curved structures visible in Ha but absent in WSSA 12 mkm data is confirmed in both T3 [2] and this T1 image (the full resolution is available under revision L):

image.png

It is possible that these structures are seen in the visible range at this level of details for the first time. Please let me know if you see any reference to them in the literature. Thanks!

Comments

Revisions

  • Structures at the tip of the "giant dust hook" in Cen (seen at this level of details in visible range for the first time?), Alexandr Zaytsev
    Original
  • Final
    Structures at the tip of the "giant dust hook" in Cen (seen at this level of details in visible range for the first time?), Alexandr Zaytsev
    B
  • Structures at the tip of the "giant dust hook" in Cen (seen at this level of details in visible range for the first time?), Alexandr Zaytsev
    D
  • Structures at the tip of the "giant dust hook" in Cen (seen at this level of details in visible range for the first time?), Alexandr Zaytsev
    E
  • Structures at the tip of the "giant dust hook" in Cen (seen at this level of details in visible range for the first time?), Alexandr Zaytsev
    L
  • Structures at the tip of the "giant dust hook" in Cen (seen at this level of details in visible range for the first time?), Alexandr Zaytsev
    M

B

Title: The original version of the image with full star suppression applied

Uploaded: ...

D

Title: Inverted version of revision B with custom tone adjustments for better visibility of structures in the shadows

Uploaded: ...

E

Title: Original revision image overlaid on top of scaled up wider FOV image obtained earlier under [2] (original revision)

Uploaded: ...

L

Title: Revision B of this image overlaid on top of scaled up wider FOV image obtained earlier under [2] (revision C)

Uploaded: ...

M

Title: Background image for revision L - taken from [2] (revision C, scaled up version)

Uploaded: ...

Histogram

Structures at the tip of the "giant dust hook" in Cen (seen at this level of details in visible range for the first time?), Alexandr Zaytsev

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