| DOI | Resolve DOI: https://doi.org/10.1093/mnras/stad812 |
|---|
| Author | Search for: Falxa, MORCID identifier: https://orcid.org/0000-0002-0815-1781; Search for: Babak, S; Search for: Baker, P T; Search for: Bécsy, B; Search for: Chalumeau, A; Search for: Chen, SORCID identifier: https://orcid.org/0000-0002-3118-5963; Search for: Chen, ZORCID identifier: https://orcid.org/0000-0001-7016-9934; Search for: Cornish, N J; Search for: Guillemot, L; Search for: Hazboun, J SORCID identifier: https://orcid.org/0000-0003-2742-3321; Search for: Mingarelli, C M FORCID identifier: https://orcid.org/0000-0002-4307-1322; Search for: Parthasarathy, AORCID identifier: https://orcid.org/0000-0002-4140-5616; Search for: Petiteau, A; Search for: Pol, N S; Search for: Sesana, A; Search for: Spolaor, S B; Search for: Taylor, S R; Search for: Theureau, G; Search for: Vallisneri, MORCID identifier: https://orcid.org/0000-0002-4162-0033; Search for: Vigeland, S J; Search for: Witt, C A; Search for: Zhu, XORCID identifier: https://orcid.org/0000-0001-7049-6468; Search for: Antoniadis, J; Search for: Arzoumanian, Z; Search for: Bailes, M; Search for: Bhat, N D RORCID identifier: https://orcid.org/0000-0002-8383-5059; Search for: Blecha, L; Search for: Brazier, A; Search for: Brook, P R; Search for: Caballero, NORCID identifier: https://orcid.org/0000-0001-9084-9427; Search for: Cameron, A DORCID identifier: https://orcid.org/0000-0002-2037-4216; Search for: Casey-Clyde, J A; Search for: Champion, DORCID identifier: https://orcid.org/0000-0003-1361-7723; Search for: Charisi, M; Search for: Chatterjee, S; Search for: Cognard, I; Search for: Cordes, J M; Search for: Crawford, FORCID identifier: https://orcid.org/0000-0002-2578-0360; Search for: Cromartie, H T; Search for: Crowter, K; Search for: Dai, SORCID identifier: https://orcid.org/0000-0002-9618-2499; Search for: DeCesar, M E; Search for: Demorest, P B; Search for: Desvignes, GORCID identifier: https://orcid.org/0000-0003-3922-4055; Search for: Dolch, T; Search for: Drachler, B; Search for: Feng, Y; Search for: Ferrara, E C; Search for: Fiore, W; Search for: Fonseca, E; Search for: Garver-Daniels, N; Search for: Glaser, J; Search for: Goncharov, BORCID identifier: https://orcid.org/0000-0003-3189-5807; Search for: Good, D C; Search for: Griessmeier, J; Search for: Guo, Y J; Search for: Gültekin, KORCID identifier: https://orcid.org/0000-0002-1146-0198; Search for: Hobbs, GORCID identifier: https://orcid.org/0000-0003-1502-100X; Search for: Hu, HORCID identifier: https://orcid.org/0000-0002-3407-8071; Search for: Islo, K; Search for: Jang, J; Search for: Jennings, R J; Search for: Johnson, A D; Search for: Jones, M L; Search for: Kaczmarek, J1; Search for: Kaiser, A R; Search for: Kaplan, D LORCID identifier: https://orcid.org/0000-0001-6295-2881; Search for: Keith, MORCID identifier: https://orcid.org/0000-0001-5567-5492; Search for: Kelley, L ZORCID identifier: https://orcid.org/0000-0002-6625-6450; Search for: Kerr, MORCID identifier: https://orcid.org/0000-0002-0893-4073; Search for: Key, J S; Search for: Laal, N; Search for: Lam, M T; Search for: Lamb, W G; Search for: Lazio, T J W; Search for: Liu, K; Search for: Liu, T; Search for: Luo, J; Search for: Lynch, R S; Search for: Madison, D R; Search for: Main, RORCID identifier: https://orcid.org/0000-0002-7164-9507; Search for: Manchester, R; Search for: McEwen, A; Search for: McKee, J; Search for: McLaughlin, M AORCID identifier: https://orcid.org/0000-0001-7697-7422; Search for: Ng, C; Search for: Nice, D J; Search for: Ocker, SORCID identifier: https://orcid.org/0000-0002-4941-5333; Search for: Olum, K DORCID identifier: https://orcid.org/0000-0002-2027-3714; Search for: Osłowski, S; Search for: Pennucci, T T; Search for: Perera, B B PORCID identifier: https://orcid.org/0000-0002-8509-5947; Search for: Perrodin, D; Search for: Porayko, N; Search for: Possenti, A; Search for: Quelquejay-Leclere, H; Search for: Ransom, S MORCID identifier: https://orcid.org/0000-0001-5799-9714; Search for: Ray, P SORCID identifier: https://orcid.org/0000-0002-5297-5278; Search for: Reardon, D JORCID identifier: https://orcid.org/0000-0002-2035-4688; Search for: Russell, C JORCID identifier: https://orcid.org/0000-0002-1942-7296; Search for: Samajdar, A; Search for: Sarkissian, J; Search for: Schult, L; Search for: Shaifullah, GORCID identifier: https://orcid.org/0000-0002-8452-4834; Search for: Shannon, R MORCID identifier: https://orcid.org/0000-0002-7285-6348; Search for: Shapiro-Albert, B J; Search for: Siemens, X; Search for: Simon, J J; Search for: Siwek, MORCID identifier: https://orcid.org/0000-0002-1530-9778; Search for: Smith, T L; Search for: Speri, LORCID identifier: https://orcid.org/0000-0002-5442-7267; Search for: Spiewak, RORCID identifier: https://orcid.org/0000-0002-6730-3298; Search for: Stairs, I H; Search for: Stappers, BORCID identifier: https://orcid.org/0000-0001-9242-7041; Search for: Stinebring, D R; Search for: Swiggum, J K; Search for: Tiburzi, C; Search for: Turner, J; Search for: Vecchio, A; Search for: Verbiest, J P WORCID identifier: https://orcid.org/0000-0002-4088-896X; Search for: Wahl, H; Search for: Wang, S Q; Search for: Wang, J; Search for: Wang, J; Search for: Wu, Z; Search for: Zhang, L; Search for: Zhang, S |
|---|
| Affiliation | - National Research Council of Canada. Herzberg Astronomy and Astrophysics
|
|---|
| Funder | Search for: CNRS; Search for: NWO; Search for: Italian Space Agency; Search for: Autonomous Region of Sardinia; Search for: National Institute for Astrophysics; Search for: National Science Foundation; Search for: Stavros Niarchos Foundation; Search for: Hellenic Foundation for Research and Innovation; Search for: NSFC; Search for: NASA; Search for: Simons Foundation; Search for: Space Telescope Science Institute; Search for: Australian Research Council; Search for: European Research Council; Search for: Natural Sciences and Engineering Research Council of Canada; Search for: Deutsche Forschungsgemeinschaft; Search for: China Postdoctoral Science Foundation; Search for: Brinson Foundation |
|---|
| Format | Text, Article |
|---|
| Subject | gravitational waves; methods: data analysis; pulsars: general |
|---|
| Abstract | The International Pulsar Timing Array 2nd data release is the combination of data sets from worldwide collaborations. In this study, we search for continuous waves: gravitational wave signals produced by individual supermassive black hole binaries in the local universe. We consider binaries on circular orbits and neglect the evolution of orbital frequency over the observational span. We find no evidence for such signals and set sky averaged 95 per cent upper limits on their amplitude h₉₅. The most sensitive frequency is 10 nHz with h₉₅ = 9.1 × 10⁻¹⁵. We achieved the best upper limit to date at low and high frequencies of the PTA band thanks to improved effective cadence of observations. In our analysis, we have taken into account the recently discovered common red noise process, which has an impact at low frequencies. We also find that the peculiar noise features present in some pulsars data must be taken into account to reduce the false alarm. We show that using custom noise models is essential in searching for continuous gravitational wave signals and setting the upper limit. |
|---|
| Publication date | 2023-03-21 |
|---|
| Publisher | Oxford Academic |
|---|
| In | |
|---|
| Language | English |
|---|
| Peer reviewed | Yes |
|---|
| Export citation | Export as RIS |
|---|
| Report a correction | Report a correction (opens in a new tab) |
|---|
| Record identifier | 663bc76d-7ac8-4a59-b432-4cb1974122dc |
|---|
| Record created | 2024-06-26 |
|---|
| Record modified | 2024-06-26 |
|---|
