The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star...
-
Upload
allyson-miles -
Category
Documents
-
view
212 -
download
0
Transcript of The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star...
![Page 1: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/1.jpg)
The radio/X-ray correlation in
transitional MSPsWhat makes tMSPs special
amongst neutron star LMXBs?
Adam Deller26/06/2015
![Page 2: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/2.jpg)
June 26, 2015
With thanks to
• Participants across many institutes:– Anne Archibald, Jason Hessels, Javier Moldon, Gemma
Janssen, Cees Bassa, George Heald, Nicolas Vilchez (ASTRON)– James Miller-Jones (Curtin)– Alessandro Patruno, Caroline D’Angelo (Leiden)– Zsolt Paragi (JIVE)– Slavko Bogdanov, Jules Halpern (Columbia)– Vicky Kaspi (Macgill)– Andrew Lyne, Ben Stappers, Benetga Perera (Manchester)– Shriharsh Tendulkar (Caltech)– Amruta Jaodand, Rudy Wijnands (Amsterdam)
• For more details see:– Deller et al. 2015, ApJ, accepted (arXiv: 1412.5155)– Archibald et al. 2015, ApJ, accepted (arXiv: 1412.1306)– Bogdanov et al. 2015, ApJ, 806, 148
![Page 3: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/3.jpg)
June 26, 2015
LMXB inputs and outputsNASA, D. Berry
Min
.Mjet
.
Mobj.
.Mwind
.
![Page 4: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/4.jpg)
June 26, 2015
LMXB energy budgetNASA, D. Berry
Ltot
Ljet
Lobj.
Lwind
Lrad
![Page 5: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/5.jpg)
June 26, 2015
LMXB energy budgetNASA, D. Berry
Ltot
Ljet
Lobj.
Lwind
Lrad
Fender et al. (2001, 2003), Migliari et al. (2006)
![Page 6: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/6.jpg)
June 26, 2015
LMXB observables
• Radiated energy is dominated by X-rays: LX ~ Lrad
• Jet luminosity can be estimated via radio: LR Ljet
1.4 LR = A Ljet1.4
• What is seen for black hole LMXBs?
![Page 7: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/7.jpg)
June 26, 2015
LR/LX correlation
LR LX0.61
(Gallo et al., 2014)
![Page 8: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/8.jpg)
June 26, 2015
LR/LX correlation
• Simple models of radiatively inefficient accretion predict
1. Ljet Min
2. Lrad Min2
Ljet Lrad0.5
LR LX0.7
• What about the neutron star systems?
.
.
![Page 9: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/9.jpg)
June 26, 2015
LR/LX correlation
![Page 10: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/10.jpg)
June 26, 2015
LR/LX correlation
• (At least) two potential relations for the NS-LMXBs:
1. LR LX0.7 (like BH systems, but less
radio-loud [weaker jets]); or2. LR LX
1.4 (Ljet Min, Lrad Min : fixed fractions going to jet / radiated)
• What about the transitional MSPs?
. .
![Page 11: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/11.jpg)
June 26, 2015
LR/LX correlation
![Page 12: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/12.jpg)
June 26, 2015
LR/LX correlation
3FGL J1544
1RXS J1804
![Page 13: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/13.jpg)
June 26, 2015
Conclusions, open questions
• J1023 shows a radio emission from a compact jet in the LMXB state
• All the known and suspected tMSPs are radio over-luminous compared to other NS-LMXBs– Propeller mechanism -> efficient jet
formation? Connection to gamma-rays?– In what mode(s) is this efficient jet
formation occurring?
![Page 14: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/14.jpg)
June 26, 2015
J1023 LMXB state: radio
Deller14+
![Page 15: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/15.jpg)
June 26, 2015
J1023 LMXB state: radio
Limited overlapwith X-ray: not possibleto determineif correlationpresent; no sign of steepspectrum pulsaremission(Bogdanov14+)
![Page 16: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/16.jpg)
June 26, 2015
J1023 LMXB state: monitoring
![Page 17: The radio/X-ray correlation in transitional MSPs What makes tMSPs special amongst neutron star LMXBs? Adam Deller 26/06/2015.](https://reader038.fdocuments.us/reader038/viewer/2022110321/56649f435503460f94c62d25/html5/thumbnails/17.jpg)
June 26, 2015
J1023 LMXB state: monitoring
Second XMM-Newton observation in June 2014showed identical X-ray behaviour, as did Swift monitoring
Consistentwith “high”mode seen in detail byXMM