Observation by Robin Leadbeater: SN 2023ixf spectrum evolution - part 4

Uploaded by

Robin Leadbeater

Observer

Robin Leadbeater

Observed

2023 Jul 20 - 01:26

Uploaded

2023 Sep 27 - 22:00

Objects

M101
Spectrum

Equipment

ALPY 600 spectrograph
ATIK 428 ex camera
Celestron C11 SCT 280mm aperture f5.5

Exposure

5 nights of observation (20-150min)

Location

Wigton Cumbria UK

Target name

SN 2023ixf in M101

Title

SN 2023ixf spectrum evolution - part 4

About this image

Part 4 of a series of animations, showing the evolution of the spectrum from 2023-07-20 to 2023-09-25. (part 1, part 2 part 3)

During this phase the supernova suddenly faded in V by 1.5 magnitudes in 10 days before resuming a more gentle decline of ~0.2 mag/10 days. This animation shows the spectrum evolution both in relative flux normalised at 5500Angstrom as per the previous animations but also in absolute flux (based on V photometry in the BAA photometry database by Ian Sharp), showing the actual change in flux over this period.

Generated using ISIS software from 5 observations interpolated at 1 day intervals and animated at 10fps

The original spectra are available from the BAA spectroscopy database

Files associated with this observation

interp_interpflux_combined.gif (387.9 kB)

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Callum Potter, Andy Wilson, Hugh Allen

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