FIRST MAGNETAR IN A BINARY SYSTEM
In a groundbreaking discovery, a new magnetar candidate was detected in a binary system by the Swift observatory. This young, highly magnetized neutron star orbits a Be star, hinting at a possible binary nature. Spectroscopic analysis revealed long-term variability and a mild eccentricity in the orbit, supporting the magnetar companion hypothesis. The results are consistent with a low-mass neutron star showing intriguing characteristics. Visual representations illustrate the relationship within the binary system, offering insights into the dynamics at play.
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FIRST MAGNETAR IN A BINARY SYSTEM? By: Clarissa Pavao Mentor: Noel D. Richardson, Herbert Pablo, Andre-Nicolas Chene
PROJECT SUMMARY Swift detected new magnetar candidate Magnetars are young and highly magnetized neutron stars Be star was found by this magnetar Spectroscopic orbit Possible binary system https://apod.nasa.gov/apod/ap980527.html Credit: Robert Mallozzi (UAH, MSFC)
SPECTROSCOPY Fig. 1: The plot above shows the equivalent width of He I 5876 of CPD-29 2176 taken from CTIO. Disk variability from Spectroscopy Helium and Hydrogen lines Long-term variability Cerro Tololo Inter-American Observatory | ast.noao.edu. (2021). Retrieved 2 April 2021, from http://ast.noao.edu/facilities/ctio
SPECTROSCOPY Fig. 2: The plot above is the equivalent width of He I 6678 of CPD-29 2176, taken from CTIO. Fig.3: The plot above is the equivalent width of H-alpha CPD-29 2176, taken from CTIO.
PHOTOMETRY Fig 4: The plot above shows the photometry from ASAS and ASAS-SN of CPD-29 2176. ASAS All Sky Automated Survey ASAS-SN All Sky Automated Survey for Supernovae
RADIAL VELOCITY Fig 5: The plot above shows our derived spectroscopic orbit of CPD-29 2176. Spectroscopic orbit Radial velocity Orbital elements
RESULTS Consistent with a magnetar companion Low mass neutron star (magnetar) Mild eccentricity Long-term variability Spectroscopic orbit Moving forward This is a depiction of the Be binary Phi Per (painting by Bill Pounds). This shows a representation of the large disc around the Be star with a small compact object (bottom left). Even though this is not the exact type of binary that we have, it shows a similar idea. More spectra
