M. Geymeier
YOU?
Author Swipe
View article: The origin of the high-mass X-ray binary 4U 2206+54/BD+532790
The origin of the high-mass X-ray binary 4U 2206+54/BD+532790 Open
Based on the Gaia EDR3 astrometric parameters and our new systemic radial velocity of the high-mass X-ray binary 4U 2206+54/BD+532790, we studied the trace back motion of the system and propose that it originated in the subgroup of the Cep…
View article: Identification of additional young nearby runaway stars based on Gaia\n data release 2 observations and the lithium test
Identification of additional young nearby runaway stars based on Gaia\n data release 2 observations and the lithium test Open
Runaway stars are characterised by their remarkably high space velocities,\nand the study of their formation mechanisms has attracted considerable\ninterest. Young, nearby runaway stars are the most favorable for identifying\ntheir place o…
View article: Identification of additional young nearby runaway stars based on Gaia data release 2 observations and the lithium test
Identification of additional young nearby runaway stars based on Gaia data release 2 observations and the lithium test Open
Runaway stars are characterized by their remarkably high space velocities, and the study of their formation mechanisms has attracted considerable interest. Young, nearby runaway stars are the most favorable for identifying their place of o…
View article: On the origin of runaway binaries: the case of the HMXB 4U 2206+54/BD +53 2790
On the origin of runaway binaries: the case of the HMXB 4U 2206+54/BD +53 2790 Open
We present most probable place and time of the origin of the runaway high-mass X-ray binary 4U 2206+54 based on its Gaia EDR3 astrometric parameters and our new systemic radial velocity. We studied the trace back motion of the system and p…
View article: Comparison of telescopic and naked‐eye sunspots for the very small spots on February 15, 1900 and January 30, 1911
Comparison of telescopic and naked‐eye sunspots for the very small spots on February 15, 1900 and January 30, 1911 Open
In a recent discussion of the Maunder Minimum, two sunspot observations by Chinese court astronomers on February 15, 1900 and January 30, 1911 (±1 day) – presumably made with the unaided eye – were considered false detections because the s…