Dipping in Cygnus X-2 in a multi-wavelength campaign due to absorption of extended ADC emission

• We report results of one-day simultaneous multiwavelength observations of Cygnus X-2 using XMM, Chandra, the European VLBI Network and the XMM Optical Monitor. During the observations, the source did not exhibit Z-track movement, but remained in the vicinity of the soft apex. It was in a radio quiescent/quiet state of 60 degrees these structures can still cover large parts of the extended ADC, without absorbing emission from the central neutral star.

Ämnesord

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Nyckelord

acceleration of particles

grating spectrometer

X-rays: binaries

timing-explorer

radio continuum: general

z-track sources

accretion disks

neutron-star

circinus x-1

xmm-newton

accretion

stars: neutron

x-ray spectroscopy

high-resolution

interstellar-medium

quasi-periodic oscillations

X-rays: individuals: Cyg X-2

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