AX Per Stong outburst

[James Foster]

Here is my old spectra from late January2019 (Alpy600 & LISA-Ir combined):

Will shoot it again...most likely from Mt. Pinos, CA 3 weeks from now because my east sky has too much obstruction.

James

[Christophe Boussin]

Thank you François !

I hope to take advantage of a "break" through the clouds in the coming days to obtain a new spectrum of AX Per and, perhaps, detect the reappearance of the [FeVII] line at 6087A...
It's really exciting to see how evolve this binary system over the weeks !

Hello James,

Very interesting to discover the spectrum of AX Per in the infrared !
How did you go about combining the spectra of your Alpy and your LISA ?
I also have an east horizon little cleared from my garden...with a small "window" to observe !
I hope that we can be more numerous to be able to continue the monitoring of AX Per in the morning sky !

Spectroscopically...and clear skies !

Christophe

[Christophe Boussin]

Hello all,

Finally, the clouds left me a small window of observation in the morning sky...
The spectrum below was obtained on June 13 at 00 h 50 TU (Alpy 600, resolution 503, JJ = 2458647.5352, 4 exposures of 300 s) :

AX Per on June 13th, 2019

_axper_20190613_035_Christophe Boussin_3700_7570.png (65.15 KiB) Viewed 6942 times

Comparison of the spectra of May 12, June 1 and June 13 :

AX Per on May 12th, June 1st and June 13th, 2019 (identification of some lines from PlotSpectra)

AX Per on May 12th, June 1st and June 13th, 2019 (zoom)

The decrease of the relative intensities of the spectral lines continues and... no sign of reappearance of the [FeVII] line at 6087A for the moment !

Clear skies,

Christophe BOUSSIN

[Christophe Boussin]

Hello all,

This is my last update for AX Per !
The spectrum below was obtained on June 21 at 23 h 38 TU (Alpy 600, resolution 507, JJ = 2458656.485, 4 exposures of 300 s) :

AX Per on June 21th, 2019

_axper_20190621_985_Christophe Boussin_3700_7570.png (70.16 KiB) Viewed 6857 times

Comparison of the spectra of June 1, June 13 and June 21 :

AX Per on June 1st, June 13th and June 21th, 2019 (identification of some lines from PlotSpectra)

AX Per on June 1st, June 13th and June 21th, 2019 (zoom)

The relative intensities of the spectral lines have changed very little since June 13th (no sign of reappearance of the [FeVII] line at 6087A).

Clear skies,

Christophe BOUSSIN

[Christophe Boussin]

Hello all,

With a little delay due to busy weeks, here is my last update for AX Per with two new spectra !

The first one was obtained on June 26 at 23 h 48 TU (Alpy 600, resolution 505, JJ = 2458661.4921, 12 exposures of 300 s) :

AX Per on June 26th, 2019

_axper_20190626_992_Christophe Boussin_3700_7570.png (78.13 KiB) Viewed 6665 times

The second spectrum below was obtained on July 5 at 22 h 36 TU (Alpy 600, resolution 506, JJ = 2458670.4423, 14 exposures of 300 s) :

AX Per on July 5th, 2019

_axper_20190705_942_Christophe Boussin_3700_7570.png (64.25 KiB) Viewed 6665 times

Comparison of the spectra of June 21, June 26 and July 5 :

AX Per on June 21th, June 26th and July 5th, 2019 (identification of some lines from PlotSpectra)

AX Per on June 21th, June 26th and July 5th, 2019 (zoom)

For example, we can notice the increase in the relative intensity of the Halpha line between June 26th and July 5th, but still no sign of reappearance of the [FeVII] line at 6087A...

Halpha

Halpha_axper_Christophe Boussin.png (22.9 KiB) Viewed 6665 times

Clear skies,

Christophe BOUSSIN

[Christophe Boussin]

Hello all,

After nice warm nights, here is my last update for AX Per with two new spectra !

The first one was obtained on July 16 at 00 h 39 TU (Alpy 600, resolution 510, JJ = 2458680.5275, 5 exposures of 300 s) :

AX Per on July 16th, 2019

_axper_20190716_027_Christophe Boussin_3700_7570.png (64.64 KiB) Viewed 6489 times

The second spectrum below was obtained on July 25 at 00 h 20 TU (Alpy 600, resolution 506, JJ = 2458689.5145, 8 exposures of 300 s) :

AX Per on July 25th, 2019

_axper_20190725_014_Christophe Boussin_3700_7570.png (66.66 KiB) Viewed 6489 times

Comparison of the spectra of July 5, 16 and 25 :

AX Per on July 5th, 16th and 25th, 2019 (identification of some lines from PlotSpectra)

AX Per on July 5th, 16th and 25th, 2019 (zoom)

Since July 5th, we can note a slight decrease in the relative intensity of the Halpha line but still no sign of reappearance of the [FeVII] line at 6087A...

Halpha

Halpha_axper_Christophe Boussin.png (23.67 KiB) Viewed 6489 times

Clear skies,

Christophe BOUSSIN