cataclysmics, symbiotics, novae€¦ ·

Eruptive stars spectroscopyCataclysmics, Symbiotics, Novae

ARAS Eruptive StarsInformation Letter n° 37 #2017-07 21-10-2017

Supp. 37-2

R Aqr Status of the campaign

Margarita Karovska (Harvard-Smithsonian Center for Astrophysics) has requested spectroscopic monitoring of the mira symbiotic R Aqr in support to Chandra/HST observations scheduled October 11, 2017 (Wed) Day 284October 13, 2017 (Fri) Day 286October 14, 2017 (Sat) Day 287

After preliminary observations from Aug. 6 to Oct. 9 (see Information Letter n° 37#2017-07 Supp. 37-1) ARAS group obtained 43 spectra at resolution 600 to 14000 from Oct. 10 to Oct. 15 during the scheduled observations with CHANDRA/HST with a nightly coverage, perfectly meeting the demandMargarita Karovska: “Beautiful! Thanks all! Please continue the spectroscopy coverage.”

The results obtained are reported in this Letter.

CHANDRA/HST observations were successful, said Margarita :“The observations were completed as planned, and the data look very promising!Working on the preliminary calibration and so on.”

Further observations are required until late December at a rythm of 8/10 days

ARAS DATA BASE: http://www.astrosurf.com/aras/Aras_DataBase/Symbiotics/RAqr.htmARAS FORUM TOPIC: http://spectro-aras.com/forum/viewtopic.php?f=5&t=1820

F. TeyssierAuthor

ARAS Eruptive Stars Information Letter 2017-07 Sup. 2 - R Aqr Campaign - p. 1

Observers: J. Guarro, U. Sollechia, P. Berardi, L. Franco, T. Bohlsen, C. Buil, O. Garde, T. Lester, W. Sims, F. Teyssier, Dong Li, F. Campos, P. Cazatto, P. Luckas, B. Mauclaire

Current events Outburst of the classical symbiotic AX Per detected from a spectrum obtained by Fran Campos on Oct. 7 - Observations strongly recommandedV694 Mon campaign on the resquest of A. lucy and J. Sokolovsi

http://www.astrosurf.com/aras/Aras_DataBase/Symbiotics/RAqr.htm

http://spectro-aras.com/forum/viewtopic.php?f=5&t=1820

R Aqr Campaign - Log of Observations

AAVSO V band light curve (daily main) since 2017 Aug.and ARAS Spectra (blue dots)CHANDRA/HST Observations: red squares

Date UT OBS Res10/10/2017 19:49 BER 4217 4762 523710/10/2017 20:47 SOL 8521 6368 676910/10/2017 21:21 JGF 9000 4139 775410/10/2017 22:11 BUI 11000 4064 758911/10/2017 12:04 TBO 14372 6493 665911/10/2017 18:43 BER 4167 4760 523811/10/2017 20:22 FCA 712 3777 731211/10/2017 20:23 FRA 532 3841 723111/10/2017 20:27 OGA 11000 4185 731411/10/2017 20:40 SOL 8248 6369 677011/10/2017 21:15 BUI 11000 4138 758911/10/2017 21:29 JGF 9000 4239 775411/10/2017 21:52 BMA 11000 6527 669412/10/2017 7:08 FAS 1067 3832 742212/10/2017 7:45 FAS 1069 3832 742212/10/2017 11:17 TBO 14146 6493 665912/10/2017 18:58 BER 4207 4763 524312/10/2017 19:47 SOL 8740 6377 676312/10/2017 20:10 BUI 11000 4069 758912/10/2017 21:28 JGF 9000 4223 775413/10/2017 1:41 LES 13000 4030 794813/10/2017 6:34 FAS 1066 3830 742013/10/2017 6:50 FAS 1066 3830 742013/10/2017 11:05 TBO 13879 6493 665913/10/2017 11:57 DLI 5056 6405 673913/10/2017 19:19 BER 3954 4761 523713/10/2017 21:00 FRA 540 3841 723113/10/2017 21:01 JGF 9000 4257 775413/10/2017 21:03 BUI 11000 4066 758913/10/2017 21:13 FMT 11000 4300 720013/10/2017 21:19 FCA 927 3770 730713/10/2017 21:37 OGA 11000 4185 731414/10/2017 6:49 FAS 1054 3828 741914/10/2017 20:31 FRA 548 3841 723114/10/2017 21:45 JGF 9000 4175 775414/10/2017 22:22 BMA 11000 6527 669415/10/2017 3:06 FAS 1047 3826 741715/10/2017 5:06 FAS 1061 3826 741815/10/2017 18:25 BER 4138 4762 524315/10/2017 19:43 BMA 11000 6526 668015/10/2017 19:54 OGA 11000 4185 731415/10/2017 20:07 FCA 918 3772 730815/10/2017 20:20 SOL 8320 6382 676116/10/2017 21:15 JGF 9000 4178 775717/10/2017 7:39 FAS 1050 3828 741818/10/2017 13:24 PJL 536 3700 739819/10/2017 10:53 TBO 14052 6493 665919/10/2017 19:27 PCA 553 3701 7199

Range [ A ]

8

9

10

112457955 2457985 2458015 2458045

R Aqr

BER Paolo Berardi ITBMA Benjamin Mauclaire FRBUI Christian Buil FRDLI Dong Li CNFAS Woody Sims USFCA Fran Campos SPFMT François Teyssier FRFRA Lorenzo Franco ITJGF Joan Guarro SPLES Tim Lester CAOGA Olivier Garde FRPCA Paolo Cazatto ITPJL Paul Luckas AUSOL Umberto Sollecchia ITTBO Terry Bohlsen AU

ARAS Eruptive Stars Information Letter 2017-07 Sup. 2 - R Aqr Campaign - p. 3 ARAS Eruptive Stars Information Letter 2017-07 Sup. 2 - R Aqr Campaign - p. 3 ARAS Eruptive Stars Information Letter 2017-07 Sup. 2 - R Aqr Campaign - p. 2

R Aqr Oct., 2017 - Low res spectra

Date UT OBS Res13/08/2017 23:11 FCA 709 3803 733120/08/2017 22:48 FCA 701 3858 740216/09/2017 21:18 FCA 637 3804 734627/09/2017 21:27 FCA 843 3815 735807/10/2017 20:33 FRA 541 3841 723107/10/2017 23:03 FCA 813 3719 726911/10/2017 20:22 FCA 712 3777 731211/10/2017 20:23 FRA 532 3841 723112/10/2017 7:08 FAS 1067 3832 742212/10/2017 7:45 FAS 1069 3832 742213/10/2017 6:34 FAS 1066 3830 742013/10/2017 6:50 FAS 1066 3830 742013/10/2017 21:00 FRA 540 3841 723113/10/2017 21:19 FCA 927 3770 730714/10/2017 6:49 FAS 1054 3828 741914/10/2017 20:31 FRA 548 3841 723115/10/2017 3:06 FAS 1047 3826 741715/10/2017 5:06 FAS 1061 3826 741815/10/2017 20:07 FCA 918 3772 730817/10/2017 7:39 FAS 1050 3828 741818/10/2017 13:24 PJL 536 3700 739819/10/2017 19:27 PCA 553 3701 7199

Range [ A ] Code ObserverFCA Fran CamposFRA Lorenzo FrancoFAS Woody SimsPJL Paul LuckasPCA Paoloa Cazatto

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4000 4500 5000 5500 6000 6500 7000Wavelength (Angstrom)

2017-10-11.849 FPC2017-10-11.850 LFranco2017-10-13.274 Woody Sims2017-10-13.285 Woody Sims2017-10-13.876 LFranco2017-10-13.888 FPC2017-10-14.855 LFranco2017-10-15.213 Woody Sims2017-10-15.838 FPC2017-10-18.559 Paul Luckas2017-10-19.811 PCA

R Aqr

ARAS Eruptive Stars Information Letter 2017-07 Sup. 2 - R Aqr Campaign - p. 3 ARAS Eruptive Stars Information Letter 2017-07 Sup. 2 - R Aqr Campaign - p. 3

The agreement of the continuums of low resolution spectra is excellent

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Wavelength (Angstrom)

R Aqr LFranco

2017-10-19.811 PCA

2017-10-18.559 Paul Luckas

2017-10-14.855 LFranco

2017-10-13.876 LFranco

2017-10-11.850 LFranco

R Aqr Oct., 2017 - R = 600

Spectra acquired by Lorenzo Franco, Paul Luckas and Paolo Cazzato with Alpy600


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R Aqr FPC

2017-10-15.838

2017-10-13.888

2017-10-11.849

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R Aqr Woody Sims

2017-10-17.319

2017-10-15.129

2017-10-14.285

R Aqr Oct., 2017 - R ~ 1000

Spectra acquired by Francisco Campos (DADOS 200) and Woody Sims (LISA)


R Aqr Oct., 2017 - Medium Resolution

Date UT OBS Res21/09/2017 20:22 BER 4052 4752 523910/10/2017 19:49 BER 4217 4762 523711/10/2017 18:43 BER 4167 4760 523812/10/2017 18:58 BER 4207 4763 524313/10/2017 19:19 BER 3954 4761 523715/10/2017 18:25 BER 4138 4762 5243

Range [ A ]Medium resolution in H beta Range (Poalo Berardi - BER) and H alpha range (Umberto Sollechia - SOL Dong Li - DLI) also obtained spectra of H alpha range under poor weather conditions

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2017-10-10.8262017-10-11.7802017-10-12.7912017-10-13.8052017-10-15.768

Hbeta 4861.363 - R Aqr Paolo Berardi

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2017-10-10.8262017-10-11.7802017-10-12.7912017-10-13.8052017-10-15.768

[O III] 5006.84 - R Aqr Paolo Berardi

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4800 4850 4900 4950 5000 5050 5100 5150 5200


R Aqr Paolo Berardi

2017-10-15.768

2017-10-13.805

2017-10-12.791

2017-10-11.780

2017-10-10.826

ARAS Eruptive Stars Information Letter 2017-07 Sup. 2 - R Aqr Campaign - p. 7 ARAS Eruptive Stars Information Letter 2017-07 Sup. 2 - R Aqr Campaign - p. 6

R Aqr Oct., 2017 - Medium Resolution

Date UT OBS Res21/09/2017 23:04 SOL 7838 6374 676902/10/2017 21:06 SOL 7480 6364 675104/10/2017 20:36 SOL 8213 6367 675605/10/2017 21:29 SOL 7992 6368 675806/10/2017 12:17 DLI 4981 6405 673908/10/2017 19:23 SOL 7935 6385 676710/10/2017 20:47 SOL 8521 6368 676911/10/2017 20:40 SOL 8248 6369 677012/10/2017 19:47 SOL 8740 6377 676313/10/2017 11:57 DLI 5056 6405 673915/10/2017 20:20 SOL 8320 6382 6761

Range [ A ]

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2017-10-10.8662017-10-11.8612017-10-12.8252017-10-14.8192017-10-15.848

Halpha 6562.8 - R Aqr Umberto Sollecchia

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6400 6450 6500 6550 6600 6650 6700 6750


r aqr Umberto Sollecchia

2017-10-15.848

2017-10-14.819

2017-10-12.825

2017-10-11.861

2017-10-10.866

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2017-10-10.8662017-10-11.8612017-10-12.8252017-10-14.8192017-10-15.848

[N II] 6583.39 - R Aqr Umberto Sollecchia


R Aqr High resolution H alpha range

Date UT OBS Res11/10/2017 12:04 TBO 14372 6493 665911/10/2017 21:52 BMA 11000 6527 669412/10/2017 11:17 TBO 14146 6493 665913/10/2017 11:05 TBO 13879 6493 665914/10/2017 22:22 BMA 11000 6527 669415/10/2017 19:43 BMA 11000 6526 668019/10/2017 10:53 TBO 14052 6493 6659

Range [ A ] Code ObserverBMA Benjamin MauclaireTBO Terry Bohlsen

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2017-10-11.5032017-10-12.4712017-10-13.4622017-10-19.454

Halpha 6562.8 - R Aqr TBohlsen

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6500 6520 6540 6560 6580 6600 6620 6640Wavelength (Angstrom)

2017-10-11.5032017-10-12.4712017-10-13.4622017-10-19.454

R Aqr TBohlsen

H alpha range with Lhires III 2400 l/mm R = 11000 to 14000 with Ha, [NII] 6548, 6583

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2017-10-11.9112017-10-14.9322017-10-15.822

R Aqr Benjamin MAUCLAIRE


Date UT OBS Res06/08/2017 23:29 OGA 11000 4185 731310/08/2017 5:54 LES 13000 4030 794902/09/2017 4:18 LES 13000 4030 794902/09/2017 23:45 FMT 11000 4140 739410/09/2017 3:49 LES 13000 4030 794917/09/2017 3:12 LES 13000 4030 794822/09/2017 22:18 FMT 11000 4286 715929/09/2017 23:42 OGA 11000 4185 731404/10/2017 20:56 FMT 11000 4141 739410/10/2017 21:21 JGF 9000 4139 775410/10/2017 22:11 BUI 11000 4064 758911/10/2017 20:27 OGA 11000 4185 731411/10/2017 21:15 BUI 11000 4138 758911/10/2017 21:29 JGF 9000 4239 775412/10/2017 20:10 BUI 11000 4069 758912/10/2017 21:28 JGF 9000 4223 775413/10/2017 1:41 LES 13000 4030 794813/10/2017 21:01 JGF 9000 4257 775413/10/2017 21:03 BUI 11000 4066 758913/10/2017 21:13 FMT 11000 4300 720013/10/2017 21:37 OGA 11000 4185 731414/10/2017 21:45 JGF 9000 4175 775415/10/2017 19:54 OGA 11000 4185 731416/10/2017 21:15 JGF 9000 4178 7757

Range [ A ] BUI Christian BuilFMT François TeyssierJGF Joan GuarroLES Tim LesterOGA Olivier Garde

R Aqr Echelle spectra

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2017-10-13.071

R Aqr 2017-10-13.071 T Lester

Echelle (home made) spectrum obtained by Tim Lester at R = 13000


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Halpha 6562.801 - R Aqr

2017-10-16.886

2017-10-15.829

2017-10-14.907

2017-10-13.884

2017-10-13.071

2017-10-12.841

2017-10-11.895

2017-10-10.9250

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[N II] 6583.39 - R Aqr

2017-10-16.886

2017-10-15.829

2017-10-14.907

2017-10-13.884

2017-10-13.071

2017-10-12.841

2017-10-11.895

2017-10-10.925

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[O I] 6300.32 - R Aqr

2017-10-16.886

2017-10-15.829

2017-10-14.907

2017-10-13.884

2017-10-13.071

2017-10-12.841

2017-10-11.895

2017-10-10.9250

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[O III] 5006.84 - R Aqr

2017-10-16.886

2017-10-15.829

2017-10-14.907

2017-10-13.884

2017-10-13.071

2017-10-12.841

2017-10-11.895

2017-10-10.925

R Aqr Echelle spectra - Daily variations of some lines


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2017-10-10.8902017-10-10.9252017-10-11.8522017-10-11.8862017-10-11.8952017-10-12.8412017-10-12.8952017-10-13.0712017-10-13.8762017-10-13.8772017-10-13.8842017-10-13.9012017-10-14.9072017-10-15.8292017-10-16.886


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2017-10-12.8412017-10-12.8952017-10-13.071


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2017-10-13.8762017-10-13.8772017-10-13.8842017-10-13.901


R Aqr Echelle spectra - Daily variations of some lines

H alpha profile from all the echelle spectra (15) since Oct. 10 to 16One profile with double emission and two with broader topSee page for discussion

Halpha variation in 6 hours Halpha from spectra acquired almost at the same time


R Aqr Changes in line profiles - Discussion

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2017-08-10.2462017-09-02.1802017-09-17.1342017-09-22.930

[O I] 6300.32 - R Aqr

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2017-08-10.2462017-09-02.1802017-09-17.1342017-09-22.930


date JD Obs.10/08/2017 2457975.789 LES02/09/2017 2457998.733 LES10/09/2017 2458006.731 LES17/09/2017 2458013.697 LES

22/09/2017 2458019.444 FMT

In the previous issue, fast changes of the lines profiles were shown. Are these changes real or the result of the conditions of observation?

Paolo Berardi obtained a spectrum of the object and its jets with a large slit on LHIRES III 1200 l/mm in H beta range.

The nebula and jet are highly structured and have complex velocity distributions. This could cause problems if the pointing varies between spectra, and even produce some profile variations on short intervals if the seeing var-ies (the psf can mix parts of the nebular spectrum into the stellar, I need to check on the relative intensities but it’s not im-possible on a scale of arcseconds) [...] Some sort of seeing monitoring, or extraction along the slit, would help clarify things.

The star and jet (and inner nebula) contaminate the spectrum and certainly alter the profiles depending on the seeing. For a typical seeing of 2-3 arcsec, the expected variation can be anything from around -30 to +70 km/s depending on the slit and cen-tering. The north is redshifted, the south blueshifted, and since there is also scattered light in any system it’s essential to displace the slit and obtain spectra either perpendicular to the slit direction or away from the central star (or take three spectra at different positions for reference). The star is variable on short timescale, the environment isn’t, so unless a high velocity event occurs (and that can be determined from lines other than Halpha) you can calibrate the contribution of the environment. NB: here is, again, a good reason to obtain a broad selection of lines: the Balmer decrement works in favor o the stellar contribution because of the excitation conditions, the Hbeta should have a much weaker nebular contribution than Halpha and the forbidden lines [O I] and [O III] will be different for the two regions. Comparing the wings of the profiles will permit a systematic correction for contributions.

Comments from Steve Shore


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