In this letter we carry out the first systematic investigation of the expected gravitational wave (GW) background generated by supermassive black hole (SMBH) binaries in the nHz frequency band accessible to pulsar timing arrays (PTAs). We take from the literature several estimates of the redshift dependent galaxy mass function and of the fraction of close galaxy pairs to derive a wide range of galaxy merger rates. We then exploit empirical black hole-host relations to populate merging galaxies with SMBHs. The result of our procedure is a collection of a large number of phenomenological SMBH binary merger rates consistent with current observational constraints on the galaxy assembly at z<1.5. For each merger rate we compute the associated GW...
NANOGrav and other Pulsar Timing Arrays (PTAs) have discovered a common-spectrum process in the nHz ...
Inspiraling massive black hole binaries (MBHBs) forming in the aftermath of galaxy mergers are expec...
Inspiraling massive black hole binaries (MBHBs) forming in the aftermath of galaxy mergers are expec...
In this letter we carry out the first systematic investigation of the expected gravitational wave (G...
Large-area sky surveys show that massive galaxies undergo at least one major merger in a Hubble time...
International audienceWe present an analytic model to describe the supermassive black hole binary (S...
International audienceWe present an analytic model to describe the supermassive black hole binary (S...
Pulsar timing arrays (PTAs) are designed to detect the predicted gravitational wave (GW) background ...
Large-area sky surveys show that massive galaxies undergo at least one major merger in a Hubble time...
Large-area sky surveys show that massive galaxies undergo at least one major merger in a Hubble time...
Inspiraling massive black hole binaries (MBHBs) forming in the aftermath of galaxy mergers are expec...
Context. The early phase of the coalescence of supermassive black hole (SMBH) binaries from their ho...
Context. The early phase of the coalescence of supermassive black hole (SMBH) binaries from their ho...
International audienceInspiraling massive black hole binaries (MBHBs) forming in the aftermath of ga...
International audienceInspiraling massive black hole binaries (MBHBs) forming in the aftermath of ga...
NANOGrav and other Pulsar Timing Arrays (PTAs) have discovered a common-spectrum process in the nHz ...
Inspiraling massive black hole binaries (MBHBs) forming in the aftermath of galaxy mergers are expec...
Inspiraling massive black hole binaries (MBHBs) forming in the aftermath of galaxy mergers are expec...
In this letter we carry out the first systematic investigation of the expected gravitational wave (G...
Large-area sky surveys show that massive galaxies undergo at least one major merger in a Hubble time...
International audienceWe present an analytic model to describe the supermassive black hole binary (S...
International audienceWe present an analytic model to describe the supermassive black hole binary (S...
Pulsar timing arrays (PTAs) are designed to detect the predicted gravitational wave (GW) background ...
Large-area sky surveys show that massive galaxies undergo at least one major merger in a Hubble time...
Large-area sky surveys show that massive galaxies undergo at least one major merger in a Hubble time...
Inspiraling massive black hole binaries (MBHBs) forming in the aftermath of galaxy mergers are expec...
Context. The early phase of the coalescence of supermassive black hole (SMBH) binaries from their ho...
Context. The early phase of the coalescence of supermassive black hole (SMBH) binaries from their ho...
International audienceInspiraling massive black hole binaries (MBHBs) forming in the aftermath of ga...
International audienceInspiraling massive black hole binaries (MBHBs) forming in the aftermath of ga...
NANOGrav and other Pulsar Timing Arrays (PTAs) have discovered a common-spectrum process in the nHz ...
Inspiraling massive black hole binaries (MBHBs) forming in the aftermath of galaxy mergers are expec...
Inspiraling massive black hole binaries (MBHBs) forming in the aftermath of galaxy mergers are expec...